98971 + Interview Questions in Primary School in Math

1.	3. For each of the following statements, indicate whether it is True/False. If false, explain why.I. If the 95% confidence interval for the average purchase of customers at a department store is $50 to $110, then $100 is a plausible value for the population mean at this level of confidence.II. If the 95% confidence interval for the number of moviegoers who purchase concessions is 30% to 45%, this means that fewer than half of all moviegoers purchase concessions.III. The 95% Confidence-Interval for μ only applies if the sample data are nearly normally distributed.
Answer» Answer: 1. true 2. true 3. false Step-by-step EXPLANATION:

1.

3. For each of the following statements, indicate whether it is True/False. If false, explain why.I. If the 95% confidence interval for the average purchase of customers at a department store is $50 to $110, then $100 is a plausible value for the population mean at this level of confidence.II. If the 95% confidence interval for the number of moviegoers who purchase concessions is 30% to 45%, this means that fewer than half of all moviegoers purchase concessions.III. The 95% Confidence-Interval for μ only applies if the sample data are nearly normally distributed.

Answer»

Answer:

1. true

2. true

3. false

Step-by-step EXPLANATION:

Discussion

2.	How many angles are there ina tan ire adjoining figure, name the point(s)in the interior of ZDOEA.in the exterior of ZEOF7 on ZEOF
Answer» ANSWER: i don't know sorry!!!!!!!!!!!!!!!!!!1 Step-by-step EXPLANATION:

2.

How many angles are there ina tan ire adjoining figure, name the point(s)in the interior of ZDOEA.in the exterior of ZEOF7 on ZEOF

Answer»

ANSWER:

i don't know

sorry!!!!!!!!!!!!!!!!!!1

Step-by-step EXPLANATION:

Discussion

3.	Two persons A and B can make a house in 116 days and 118 days respectively, if they work alone. They work together for 30 days and then A falls sick. In how many days will B complete the remaining job?SOLVED ANSWER WILL BE MARKED AS THE BRAINLIEST ANSWER.
Answer» ANSWER: PLEASE MARK me as Brainliyest answer

3.

Two persons A and B can make a house in 116 days and 118 days respectively, if they work alone. They work together for 30 days and then A falls sick. In how many days will B complete the remaining job?SOLVED ANSWER WILL BE MARKED AS THE BRAINLIEST ANSWER.

Answer»

ANSWER:

PLEASE MARK me as Brainliyest answer

Discussion

4.	Find the mean, meurall anu IIIUUU ILAL !2. Find the profit or loss percent when CP = Rs 3500, overhead expenses = Rs 150,loss = Rs 146.
Answer» ANSWER: i don't know Step-by-step EXPLANATION:

4.

Find the mean, meurall anu IIIUUU ILAL !2. Find the profit or loss percent when CP = Rs 3500, overhead expenses = Rs 150,loss = Rs 146.

Answer»

ANSWER:

i don't know

Step-by-step EXPLANATION:

Discussion

5.	1. The runs scored in a cricket match by 11 players are 6 , 15 , 120, 50, 100, 80, 10,15, 8, 10, 15.Find the mean , median and mode of the data ?
Answer» ANSWER: MEAN of these OBSERVATIONS= SUM of all observations÷no.of observations 429÷39 median=middle most value=80 mode= more no.of observations=15 hope it USEFUL....

5.

1. The runs scored in a cricket match by 11 players are 6 , 15 , 120, 50, 100, 80, 10,15, 8, 10, 15.Find the mean , median and mode of the data ?

Answer»

ANSWER:

MEAN of these OBSERVATIONS= SUM of all observations÷no.of observations

429÷39

median=middle most value=80

mode= more no.of observations=15

hope it USEFUL....

Discussion

6.	Did half yearly examination marks aad in last result class 7only teacher can reply....make sure your reply was correct
Answer» ANSWER: yes Step-by-step EXPLANATION: but only 25% OK.... hshdbdbdbdbdbdbdbdbdn

6.

Did half yearly examination marks aad in last result class 7only teacher can reply....make sure your reply was correct

Answer»

ANSWER:

yes

Step-by-step EXPLANATION:

but only 25% OK....

hshdbdbdbdbdbdbdbdbdn

Discussion

7.	9. Which ratio is larger in the following pairs ?(i) 3:4 or 9:16(ii) 15 : 16 or 24 : 25(iv) 9: 20 or 8:13U 1:2 or 13:27.
Answer» ANSWER: OPTION 2 Step-by-step EXPLANATION: II 15:16 or 24:25

7.

9. Which ratio is larger in the following pairs ?(i) 3:4 or 9:16(ii) 15 : 16 or 24 : 25(iv) 9: 20 or 8:13U 1:2 or 13:27.

Answer»

ANSWER:

OPTION 2

Step-by-step EXPLANATION:

II 15:16 or 24:25

Discussion

8.	One of the interior opposite angles ofa triangle is 40°. If the measure of the exterior angle is 120°, find the measure of the other two angles of the triangle
Answer» Answer: 120-40=80(EXTERIOR ANGLE property) let the other angle be x x+80+40=180(angle SUM property of triangle) x=180-120 x=60

8.

One of the interior opposite angles ofa triangle is 40°. If the measure of the exterior angle is 120°, find the measure of the other two angles of the triangle

Answer»

Answer:

120-40=80(EXTERIOR ANGLE property)

let the other angle be x

x+80+40=180(angle SUM property of triangle)

x=180-120

x=60

Discussion

9.	2) Five year ago , a father was seven times as old as his son. Five years hence, the fatherwill be three times as old as his son. Find their present ages.
Answer» Answer: LET present age of SON be x FIVE YEARS ago, sons age = x-5 FATHER's age=7(x-5) five years hence, son's age =x+5 father's age=3( x+5) Step-by-step explanation: 7x-35=3x+15 4x=50 x=12.5

9.

2) Five year ago , a father was seven times as old as his son. Five years hence, the fatherwill be three times as old as his son. Find their present ages.

Answer»

Answer:

LET present age of SON be x

FIVE YEARS ago,

sons age = x-5

FATHER's age=7(x-5)

five years hence,

son's age =x+5

father's age=3( x+5)

Step-by-step explanation:

7x-35=3x+15

4x=50

x=12.5

Discussion

10.	पप्रस्थानी.18. 8.8 सेमी लांबीची एक तार वाकवून तिच्यापासून एक वर्तुळ तयार केले, तर त्या वर्तुळाचा परीघकिती असेल?(2) 8.8 सेमी(3) 17.6 सेमी (4) 8 सेमी.(104.4 सेमी
Answer» ANSWER: 8.8 सेमी is the CORRECT answer

10.

पप्रस्थानी.18. 8.8 सेमी लांबीची एक तार वाकवून तिच्यापासून एक वर्तुळ तयार केले, तर त्या वर्तुळाचा परीघकिती असेल?(2) 8.8 सेमी(3) 17.6 सेमी (4) 8 सेमी.(104.4 सेमी

Answer»

ANSWER:

8.8 सेमी is the CORRECT answer

Discussion

11.	Solve the equation simultaneouslyax + by + c = 0 px + qy + r = 0I will mark as brainliest. please tell
Answer» Step-by-step EXPLANATION: ax+by = -C ..(1) px + qy = -r ..(2) then (1)p - (2)p ; apx + bpy = -cp apx + AQY = -ra y = (ra-cp)/(BP-aq) ax = -c - (abr - cbp) /(bp-aq) x = [(cbp - abr) /(bp-aq) ] - c x = ( cbp - abr - cbp + acq ) / bp - aq x =( acq - abr ) / (bp - aq)

11.

Solve the equation simultaneouslyax + by + c = 0 px + qy + r = 0I will mark as brainliest. please tell

Answer»

Step-by-step EXPLANATION:

ax+by = -C ..(1)

px + qy = -r ..(2)

then (1)*p - (2)*p ;

apx + bpy = -cp

apx + AQY = -ra

y = (ra-cp)/(BP-aq)

ax = -c - (abr - cbp) /(bp-aq)

x = [(cbp - abr) /(bp-aq) ] - c

x = ( cbp - abr - cbp + acq ) / bp - aq

x =( acq - abr ) / (bp - aq)

Discussion

12.	Which out of the following are expressions with numbers only?(a) y + 3(b) (720) - 8:(c) 5 (12- 7) + 7 x 2(d) $(e) 3x(1) 5 - 5(g) (7 x 20)-(5 * 10) - 45+ p
Answer» Answer: it is OPTION C Step-by-step explanation: 5 (12- 7) + 7 X 2

12.

Which out of the following are expressions with numbers only?(a) y + 3(b) (720) - 8:(c) 5 (12- 7) + 7 x 2(d) $(e) 3x(1) 5 - 5(g) (7 x 20)-(5 * 10) - 45+ p

Answer»

Answer:

it is OPTION C

Step-by-step explanation:

5 (12- 7) + 7 X 2

Discussion

13.	17. There are 10 pairs of socks in a drawer. What isthe minimum number of socks that a personshould pull out from the drawer to ensure thatthe gets at least two matching pairs of socks?
Answer» Answer: The answer is, of course, three socks. (The first two socks COULD MATCH, but if not, the third sock is guaranteed to match one of the others). Step-by-step EXPLANATION: Hope this helps! PLEASE MARK me as brainliest!

13.

17. There are 10 pairs of socks in a drawer. What isthe minimum number of socks that a personshould pull out from the drawer to ensure thatthe gets at least two matching pairs of socks?

Answer»

Answer:

The answer is, of course, three socks. (The first two socks COULD MATCH, but if not, the third sock is guaranteed to match one of the others).

Step-by-step EXPLANATION:

Hope this helps!

PLEASE MARK me as brainliest!

Discussion

14.	'रेषा AB व रेषा PO परस्परांशी 90° मापाचा कोन करतात', हे विधान चिन्हाचा वापर करून कशा1.(2) 34प्रकारे लिहिता येईल?रेषा AB \|\| रेषा PQ(2) रेषा AB = रेषा PO(4) रेषा AB \| रेषा PQ.(3) रेषा ABT रेषा PQ
Answer» ANSWER: jftkskrajsariikarosslarkskriaia

14.

'रेषा AB व रेषा PO परस्परांशी 90° मापाचा कोन करतात', हे विधान चिन्हाचा वापर करून कशा1.(2) 34प्रकारे लिहिता येईल?रेषा AB || रेषा PQ(2) रेषा AB = रेषा PO(4) रेषा AB | रेषा PQ.(3) रेषा ABT रेषा PQ

Answer»

ANSWER:

jftkskrajsariikarosslarkskriaia

Discussion

15.	In a box, 3th/4 of the balls are red, 1th/6 balls arewhite, and the rest are blue. If there are 3 blueballs in the box find the red balls number ?
Answer» Step-by-step explanation: i) Maharaja Sayajirao University (II) BANARAS HINDU University (iii) Aligarh Muslim University (IV) JIVAJI University Delhi Varanasi Aligarh Gwalior correct

15.

In a box, 3th/4 of the balls are red, 1th/6 balls arewhite, and the rest are blue. If there are 3 blueballs in the box find the red balls number ?

Answer»

Step-by-step explanation:

i) Maharaja Sayajirao University

(II) BANARAS HINDU University

(iii) Aligarh Muslim University

(IV) JIVAJI University

Delhi

Varanasi

Aligarh

Gwalior

correct

Discussion

16.	PQ and PR are the two tangent of the circle with centre O.If the length of QR is 8 cm and the radius of the circle(i.e. QO) is 5 cm. Find the value of QP.WITH STEP BY STEP EXPLANATION.... PLAEASE ASAP....NEED URGENTLY
Answer» ANSWER: LENGTHS of the tangents DRAWN from an external point to a circle are equal. ∴QP=PT=3.8cm PR=PT=3.8cm From EQUATIONS (i) and (ii) QP=PR=3.8cm But, QR=QP+PR ∴QR=3.8+3.8 QR=7.6cm Step-by-step EXPLANATION: Lengths of the tangents drawn from an external point to a circle are equal. ∴QP=PT=3.8cm PR=PT=3.8cm From equations (i) and (ii): QP=PR=3.8cm But, QR=QP+PR ∴QR=3.8+3.8 QR=7.6cm

16.

PQ and PR are the two tangent of the circle with centre O.If the length of QR is 8 cm and the radius of the circle(i.e. QO) is 5 cm. Find the value of QP.WITH STEP BY STEP EXPLANATION.... PLAEASE ASAP....NEED URGENTLY

Answer»

ANSWER:

LENGTHS of the tangents DRAWN from an external point to a circle are equal.

∴QP=PT=3.8cm

PR=PT=3.8cm

From EQUATIONS (i) and (ii)

QP=PR=3.8cm

But, QR=QP+PR

∴QR=3.8+3.8

QR=7.6cm

Step-by-step EXPLANATION:

Lengths of the tangents drawn from an external point to a circle are equal.

∴QP=PT=3.8cm

PR=PT=3.8cm

From equations (i) and (ii):

QP=PR=3.8cm

But, QR=QP+PR

∴QR=3.8+3.8

QR=7.6cm

Discussion

17.	Prove that the difference of the given numbers and the numbers obtained by reversing theirdigits is divisible by 9.
Answer» ANSWER: Where are the NUMBERS MATE?? Step-by-step EXPLANATION:

17.

Prove that the difference of the given numbers and the numbers obtained by reversing theirdigits is divisible by 9.

Answer»

ANSWER:

Where are the NUMBERS MATE??

Step-by-step EXPLANATION:

Discussion

18.	A town had 10,000 residents in 2000. Its population declines at a rate of 10% per annum. Whatwill be its total population in 2005?
Answer» Step-by-step EXPLANATION: at 2001 10000- 10% of 10000 10000-1000 =9000 at 2002 9000-10%of 9000 9000-900 8900 at 2003 8900-10% of 8900 8900-890 8010 at 2004 8010-10% of 8010 8010-801 7209 7209- 10% of 7209 7209-720.9 6488.1 round FIGURE 6488 HOPE THIS HELPS.

18.

A town had 10,000 residents in 2000. Its population declines at a rate of 10% per annum. Whatwill be its total population in 2005?

Answer»

Step-by-step EXPLANATION:

at 2001

10000- 10% of 10000

10000-1000 =9000

at 2002

9000-10%of 9000

9000-900

8900

at 2003

8900-10% of 8900

8900-890

8010

at 2004

8010-10% of 8010

8010-801

7209

7209- 10% of 7209

7209-720.9

6488.1

round FIGURE 6488

HOPE THIS HELPS.

Discussion

19.	(k - 2/3)² = ?1️⃣ (k²- 4k/3 - 4/9)2️⃣ (k² - 4/9)3️⃣ (k²- 4k/3 + 4/9)4️⃣ (k² + 4/9)
Answer» Answer: 3. k² -4k/3 + 4/9 hope it HELPS.... PLS DROP THANKS ❤

19.

(k - 2/3)² = ?1️⃣ (k²- 4k/3 - 4/9)2️⃣ (k² - 4/9)3️⃣ (k²- 4k/3 + 4/9)4️⃣ (k² + 4/9)

Answer»

Answer:

3. k² -4k/3 + 4/9

hope it HELPS.... PLS DROP THANKS ❤

Discussion

20.	Sonu runs around a square park of side 80m five times. what distance does he cover? Ankit runs thrice around a rectangular park of length 250m and breadth 150m. what distance does he cover? who covers more distance and by how much?please friends give me your answer fast
Answer» Step-by-step EXPLANATION: fry-bick-avh c.o.m.e I am a DOCTOR I will HELP you in STUDYING BIOLOGY

20.

Sonu runs around a square park of side 80m five times. what distance does he cover? Ankit runs thrice around a rectangular park of length 250m and breadth 150m. what distance does he cover? who covers more distance and by how much?please friends give me your answer fast

Answer»

Step-by-step EXPLANATION:

fry-bick-avh

c.o.m.e I am a DOCTOR I will HELP you in STUDYING BIOLOGY

Discussion

21.	Solve Section=B with all steps and do it correctly please. I have a test and very less time. I promise to give thanks in return and also brainliest.See I'm giving more points.
Answer» Answer: Q.3 Consider the following identity A(adjA)=∣A∣I. Thus comparing it with the above equation GIVES us ∣A∣=10 Now ∣adjA∣=∣A∣ n−1 where n is the ORDER of the square matrix. Here 'n' is 3, therefore, ∣adjA∣=∣A∣ 3−1 =∣A∣ 2 =10 2 =100. Q.5 on the ATTACHMENT Q.4

21.

Solve Section=B with all steps and do it correctly please. I have a test and very less time. I promise to give thanks in return and also brainliest.See I'm giving more points.

Answer»

Answer:

Q.3 Consider the following identity A(adjA)=∣A∣I. Thus comparing it with the above equation GIVES us ∣A∣=10

Now ∣adjA∣=∣A∣

n−1

where n is the ORDER of the square matrix.

Here 'n' is 3, therefore, ∣adjA∣=∣A∣

3−1

=∣A∣

2

=10

2

=100.

Q.5 on the ATTACHMENT

Q.4

Discussion

22.	.14. If x7, then find the value of x2+and x4+an4.r2XX
Answer» ANSWER: . 1 4. If x 7, then find the VALUE of x2 + and x4 + an 4. r 2 X X What is the meaning of this question?

22.

.14. If x7, then find the value of x2+and x4+an4.r2XX

Answer»

ANSWER:

.

1

4. If x

7, then find the VALUE of x2

+

and x4

+

an

4.

r

2

X

What is the meaning of this question?

Discussion

23.	Which of the following mathematical expansion formuls would be appropriate to solve (96)²?1️⃣ ( 100 + 4)²2️⃣ ( 100 + 6)²3️⃣ ( 100 - 6 )²4️⃣ ( 100 - 4)²
Answer» Answer: 4️⃣ ( 100 - 4)² Step-by-step explanation: (100 - 4)² using the algebraic identity: (a-b)² = a² - 2ab + b² (100 - 4)² = 100² - 2(100)(4) + 4² = 10000 - 800 + 16 = 9216 Pls mark me Brainliest

23.

Which of the following mathematical expansion formuls would be appropriate to solve (96)²?1️⃣ ( 100 + 4)²2️⃣ ( 100 + 6)²3️⃣ ( 100 - 6 )²4️⃣ ( 100 - 4)²

Answer»

Answer:

4️⃣ ( 100 - 4)²

Step-by-step explanation:

(100 - 4)²

using the algebraic identity: (a-b)² = a² - 2ab + b²

(100 - 4)² = 100² - 2(100)(4) + 4²

= 10000 - 800 + 16

= 9216

Pls mark me Brainliest

Discussion

24.	Coefficient of p2 in p3−2.5p2+3pq+q2.Coefficient of x in 1+(2+z)x.Coefficient of z2 in 5.2z3+(1.2y+9)z2+8.
Answer» ANSWER: p2 ----> - 2.5 x ----> 2 z2 ------> 9 Step-by-step explanation: Coefficient refers to the numerical VALUE attached (multiplied) to the variable. i.e CONSTANT value. Note :- You need to TAKE the sign also of the constant value.

24.

Coefficient of p2 in p3−2.5p2+3pq+q2.Coefficient of x in 1+(2+z)x.Coefficient of z2 in 5.2z3+(1.2y+9)z2+8.

Answer»

ANSWER:

p2 ----> - 2.5

x ----> 2

z2 ------> 9

Step-by-step explanation:

Coefficient refers to the numerical VALUE attached (multiplied) to the variable. i.e CONSTANT value.

Note :- You need to TAKE the sign also of the constant value.

Discussion

25.	Q.25. 2% और 5% के तीन सतत् (क्रमशः) बट्टे के समतुल्य एकल बट्ट क्या होगा ?What will be a single discount equivalent to three successive discounts of 2% and 5% ?
Answer» Answer: 7 % discount Step-by-step EXPLANATION: LET the MRP Be RS 100 and give 2% discount is 2 RS so the price became 98 and now give 5% discount so AMOUNT become 93 so TOTAL single discount is 7 %

25.

Q.25. 2% और 5% के तीन सतत् (क्रमशः) बट्टे के समतुल्य एकल बट्ट क्या होगा ?What will be a single discount equivalent to three successive discounts of 2% and 5% ?

Answer»

Answer:

7 % discount

Step-by-step EXPLANATION:

LET the MRP Be RS 100 and give 2% discount is 2 RS

so the price became 98 and now give 5% discount so

AMOUNT become 93 so TOTAL single discount is 7 %

Discussion

26.	The difference of the squares (36²-24²) .
Answer» Step-by-step explanation: use FORMULA : (a+b)(a-b) = a^2 - b^2 (36²-24²) = (36+24)(36-24) = (60)(12) = 720

26.

The difference of the squares (36²-24²) .

Answer»

Step-by-step explanation:

use FORMULA : (a+b)(a-b) = a^2 - b^2

(36²-24²) = (36+24)(36-24)

= (60)(12)

= 720

Discussion

27.	The present ages of two students are in the ratio 5: 3. After 6 years, their agesbe in the ratio 7:5. The present age of the first student is(c) 20 years(d) 15 years(a) 5 years(6) 10 years
Answer» Answer: C) 20 years Step-by-step explanation: MAY it is HELPFUL to u

27.

The present ages of two students are in the ratio 5: 3. After 6 years, their agesbe in the ratio 7:5. The present age of the first student is(c) 20 years(d) 15 years(a) 5 years(6) 10 years

Answer»

Answer:

C) 20 years

Step-by-step explanation:

MAY it is HELPFUL to u

Discussion

28.	Solve the whole work sheet, and please do it correctly.I promise to give brainliest and many thanks in return.
Answer» ANSWER: Q. No. 1] 1) = 2) A¹=+A 3) 2x - y Q. No. 2] 0 Q. No. 3] a = -10 Q. No. 4] SORRY I am UNABLE to Solve Q. No. 4 Hope it help's you Drop some thanks Mark as Brainliest

28.

Solve the whole work sheet, and please do it correctly.I promise to give brainliest and many thanks in return.

Answer»

ANSWER:

Q. No. 1] 1) =

2) A¹=+A

3) 2x - y

Q. No. 2] 0

Q. No. 3] a = -10

Q. No. 4]

SORRY I am UNABLE to Solve Q. No. 4

Hope it help's you

Drop some thanks

Mark as Brainliest

Discussion

29.	Solve all the questions below.Please do it correctly.
Answer» ANS and STEPS is in ATTACHMENT

29.

Solve all the questions below.Please do it correctly.

Answer»

ANS and STEPS is in ATTACHMENT

Discussion

30.	In a triangle sum of any two sides is greater than the third side.Thisproperty is known as _______________
Answer» Step-by-step explanation: This is CALLED the angle-sum property. The sum of the lengths of any TWO sides of a triangle is GREATER than the length of the THIRD side

30.

In a triangle sum of any two sides is greater than the third side.Thisproperty is known as _______________

Answer»

Step-by-step explanation:

This is CALLED the angle-sum property. The sum of the lengths of any TWO sides of a triangle is GREATER than the length of the THIRD side

Discussion

31.	The teacher distributes 5 pencils per student. Can you tell how many pencils are needed, given the number of students? (Use s for the number of students.)Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?
Answer» ${\underline{\underline{\large{\textsf{\textbf{\pink{Question : }}}}}}}$ The teacher distributes 5 PENCILS per student. Can you tell how MANY pencils are needed, given the number of students? (Use s for the number of students.) ${\underline{\underline{\large{\textsf{\textbf{\pink{Solution : }}}}}}}$ ❍Let the number of students be "s". $\\$ $\sf{Total \ number \ of \ pencils \ = Number \ of \ pencils \ given \ to each \ students × Number \ of \ students.}$ ${\sf{\pink{=5s}}}$ ⠀⠀⠀⠀⠀⠀_____________________ ${\underline{\underline{\large{\textsf{\textbf{\pink{Question : }}}}}}}$ Radha is drawing a dot RANGOLI (a beautiful pattern of lines joining dots with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows? ${\underline{\underline{\large{\textsf{\textbf{\pink{Solution : }}}}}}}$ Number of dots in 1 row = 9 $\\$ Number of rows = r $\\$ $\sf{Total \ number \ of \ dots \ in \ r \ rows = Number \ of rows \ × Number \ of \ dots \ in \ a \ row}$ ${\sf{\pink{=9r}}}$ $\\$ $\sf{Number \ of \ dots \ in \ 8 \ rows = 8 × 9 = 72}$ $\\$ $\sf{Number \ of \ dots \ in \ 10 \ rows = 10×9=90}$ ⠀⠀⠀⠀⠀__________________________

31.

The teacher distributes 5 pencils per student. Can you tell how many pencils are needed, given the number of students? (Use s for the number of students.)Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?

Answer»

${\underline{\underline{\large{\textsf{\textbf{\pink{Question : }}}}}}}$

The teacher distributes 5 PENCILS per student. Can you tell how MANY pencils are needed, given the number of students? (Use s for the number of students.)

${\underline{\underline{\large{\textsf{\textbf{\pink{Solution : }}}}}}}$

❍Let the number of students be "s".

$\\$

$\sf{Total \ number \ of \ pencils \ = Number \ of \ pencils \ given \ to each \ students × Number \ of \ students.}$

${\sf{\pink{=5s}}}$

⠀⠀⠀⠀⠀⠀_____________________

${\underline{\underline{\large{\textsf{\textbf{\pink{Question : }}}}}}}$

Radha is drawing a dot RANGOLI (a beautiful pattern of lines joining dots with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?

${\underline{\underline{\large{\textsf{\textbf{\pink{Solution : }}}}}}}$

Number of dots in 1 row = 9

$\\$

Number of rows = r

$\\$

$\sf{Total \ number \ of \ dots \ in \ r \ rows = Number \ of rows \ × Number \ of \ dots \ in \ a \ row}$

${\sf{\pink{=9r}}}$

$\\$

$\sf{Number \ of \ dots \ in \ 8 \ rows = 8 × 9 = 72}$

$\\$

$\sf{Number \ of \ dots \ in \ 10 \ rows = 10×9=90}$

⠀⠀⠀⠀⠀__________________________

Discussion

32.	E23. In the given figure, find ZAOB and ZBOC.123°85°A5x®80°toDBC
Answer» Answer: 360-6x+all these ANGLES

32.

E23. In the given figure, find ZAOB and ZBOC.123°85°A5x®80°toDBC

Answer»

Answer:

360-6x+all these ANGLES

Discussion

33.	All this square using all the numbers from 46 to 54. (Rulethe total of each line is 150.)495247 ,46
Answer» Answer: 49² = 2401 52² =2704 Step-by-step EXPLANATION:

33.

All this square using all the numbers from 46 to 54. (Rulethe total of each line is 150.)495247 ,46

Answer»

Answer:

49² = 2401
52² =2704

Step-by-step EXPLANATION:

Discussion

34.	33.________ is a branch of mathematics that studies the sizes, shapes,position, angles, dimensions of things.
Answer» *GEOMETRY* is a BRANCH of MATHEMATICS that studies the sizes, shapes, position, ANGLES, dimensions of things.

Discussion

35.	20) CUTTUUI1Q7) Rahul studied for 6 hours on Saturday and 4 - hours on Sunday. How much longer did4he study on Saturday?3.the
Answer» Step-by-step explanation: 2 hours i.e. 120 mins i.e. 7200 SECONDS hope you got it PLZ MARK it as brainliest

35.

20) CUTTUUI1Q7) Rahul studied for 6 hours on Saturday and 4 - hours on Sunday. How much longer did4he study on Saturday?3.the

Answer»

Step-by-step explanation:

2 hours i.e. 120 mins i.e. 7200 SECONDS

hope you got it PLZ MARK it as brainliest

Discussion

36.	The part where the exchange of gases occursduring respiration isO A Lungs and LarynxO B. Alveoli and throatO c. Throat and lungsO D. Alveoli and capillaries
Answer» D. ALVEOLI and CAPILLARIES

36.

The part where the exchange of gases occursduring respiration isO A Lungs and LarynxO B. Alveoli and throatO c. Throat and lungsO D. Alveoli and capillaries

Answer»

D. ALVEOLI and CAPILLARIES

Discussion

37.	PQ and PR are the two tangent of the circle with centre O.If the length of QR is 8 cm and the radius of the circle(i.e. QO) is 5 cm. Find the value of QP
Answer» Answer: 20/3 Step-by-step EXPLANATION: I HOPE it is HELPFUL for U

37.

PQ and PR are the two tangent of the circle with centre O.If the length of QR is 8 cm and the radius of the circle(i.e. QO) is 5 cm. Find the value of QP

Answer»

Answer:

20/3

Step-by-step EXPLANATION:

I HOPE it is HELPFUL for U

Discussion

38.	4Q6) Find the HCF of 7th and 9th multiple of राहुल स्टडीज फॉर 6 1 बाय 3 अवर्स ओं सैटरडे एंड 43 विचार आवर्तन संडे हाउ मच लोंग डिस्टेंस ऑन सैटरडे
Answer» ANSWER: ANDE gharamande GARAM garamande garem

38.

4Q6) Find the HCF of 7th and 9th multiple of राहुल स्टडीज फॉर 6 1 बाय 3 अवर्स ओं सैटरडे एंड 43 विचार आवर्तन संडे हाउ मच लोंग डिस्टेंस ऑन सैटरडे

Answer»

ANSWER:

ANDE gharamande GARAM garamande garem

Discussion

39.	Cadets are marching in a parade. There are 5 cadets in a row. What is the rule which gives the number of cadets, given the number of rows? (Use n for the number of rows.)If there are 50 mangoes in a box, how will you write the total number of mangoes in terms of the number of boxes? (Use b for the number of boxes.)
Answer» Answer: NUMBER of rows = n CADETS in each row = 5 Therefore, TOTAL number of cadets = 5n : Number of boxes = b Number of MANGOES in each BOX = 50 Therefore, total number of mangoes = 50b

39.

Cadets are marching in a parade. There are 5 cadets in a row. What is the rule which gives the number of cadets, given the number of rows? (Use n for the number of rows.)If there are 50 mangoes in a box, how will you write the total number of mangoes in terms of the number of boxes? (Use b for the number of boxes.)

Answer»

Answer:

NUMBER of rows = n

CADETS in each row = 5

Therefore, TOTAL number of cadets = 5n

:

Number of boxes = b

Number of MANGOES in each BOX = 50

Therefore, total number of mangoes = 50b

Discussion

40.	The wheel of a bus has a diameter of 2.8 m .how many rotation will wheel complete as the bus travels in 4.2 kmpls ans
Answer» ANSWER: Step-by-step explanation: 11.76 ROTATIONS

40.

The wheel of a bus has a diameter of 2.8 m .how many rotation will wheel complete as the bus travels in 4.2 kmpls ans

Answer»

ANSWER:

Step-by-step explanation:

11.76 ROTATIONS

Discussion

41.	The wheel of a bus has a diameter of 2.8 m .how many rotation will wheel complete as the bus travels in 4.2 km
Answer» Answer: 1500 rotations Step-by-step EXPLANATION: ∴The BUS travels (4.2 × 1000) m = 4200 m The bus will COMPLETE the DISTANCE in (4200 ÷ 2.8) or 1500 rotations. Answer: 1500 rotations

41.

The wheel of a bus has a diameter of 2.8 m .how many rotation will wheel complete as the bus travels in 4.2 km

Answer»

Answer:

1500 rotations

Step-by-step EXPLANATION:

∴The BUS travels (4.2 × 1000) m

= 4200 m

The bus will COMPLETE the DISTANCE in (4200 ÷ 2.8) or 1500 rotations.

Answer: 1500 rotations

Discussion

42.	8/11 x ____= 1answer quick
Answer» ANSWER: 11/8 is the answer HOPE it's HELP you

42.

8/11 x ____= 1answer quick

Answer»

ANSWER:

11/8 is the answer HOPE it's HELP you

Discussion

43.	SECTION Ba. a²+2ab +62b. Ten-2 Match the following.SECTION AA. 2X+16B. If one quantity isinverselyproportion toanother, it changesin theC. Number of sides indecagonD. (a+b) (a+b)c. Opposite wayd. 2(x+8)
Answer» ANSWER: SECTION B a. a²+2ab +62 b. Ten -2 Match the following. SECTION A A. 2X+16 B. If ONE quantity is inversely proportion to another, it changes in the C. Number of sides in decagon D. (a+b) (a+b) c. Opposite way d. 2(x+8) ＨＯＷＣＡＮＩＨＥＬＰＹＯＵ?

43.

SECTION Ba. a²+2ab +62b. Ten-2 Match the following.SECTION AA. 2X+16B. If one quantity isinverselyproportion toanother, it changesin theC. Number of sides indecagonD. (a+b) (a+b)c. Opposite wayd. 2(x+8)

Answer»

ANSWER:

SECTION B

a. a²+2ab +62

b. Ten

-2 Match the following.

SECTION A

A. 2X+16

B. If ONE quantity is

inversely

proportion to

another, it changes

in the

C. Number of sides in

decagon

D. (a+b) (a+b)

c. Opposite way

d. 2(x+8)

ＨＯＷＣＡＮＩＨＥＬＰＹＯＵ?

Discussion

44.	6/10 x 18/27multiplying fractions
Answer» Step-by-step EXPLANATION: 6/10 X 18/27 = 3/5 x 2/3 = 2/5 or 0.4

44.

6/10 x 18/27multiplying fractions

Answer»

Step-by-step EXPLANATION:

6/10 X 18/27

= 3/5 x 2/3

= 2/5 or 0.4

Discussion

45.	" AB is perpendicular to PQ " -> mention this statement by using symbol( notation) __________________
Answer» ANSWER: CHURN question Step-by-step EXPLANATION: chhhhuan

45.

" AB is perpendicular to PQ " -> mention this statement by using symbol( notation) __________________

Answer»

ANSWER:

CHURN question

Step-by-step EXPLANATION:

chhhhuan

Discussion

46.	On the map represents 500map répresents 12 x 5000 cm on the ground, i.e. 60The map ratio of a map is 1:50 000. The distance between A andB on the map is 6 cm. What is the true distance between A and B?th on the map
Answer» Answer: yes we it RT NAGAR New the LINK to my email is strictly PROHIBITED in this email 2

46.

On the map represents 500map répresents 12 x 5000 cm on the ground, i.e. 60The map ratio of a map is 1:50 000. The distance between A andB on the map is 6 cm. What is the true distance between A and B?th on the map

Answer»

Answer:

yes we it RT NAGAR New the LINK to my email is strictly PROHIBITED in this email 2

Discussion

47.	A lawn is 70 m long and 85 m broad. Apath of 10 m wide is to be built around it.Find the area of the path.Please answer me
Answer» ANSWER: SORRY DON'T KNOW ANSWER PLEASE MARK AS BRIANLIST ANSWER IF I HAVE FULLFILLED YOUR DEMAND

47.

A lawn is 70 m long and 85 m broad. Apath of 10 m wide is to be built around it.Find the area of the path.Please answer me

Answer»

ANSWER:

SORRY DON'T KNOW ANSWER

PLEASE MARK AS BRIANLIST ANSWER IF I HAVE FULLFILLED YOUR DEMAND

Discussion

48.	The four semicircular grass plots shaded in Figure 4 If the side of square ABCD is 10 m, then calculatethe cost of turfing. (Use 7 = 3.14)
Answer» Answer: What do you mean....Can you PLEASE EXPLAIN it further or else you should attach the Figure 4 Diagram..how would we KNOW about figure 4

48.

The four semicircular grass plots shaded in Figure 4 If the side of square ABCD is 10 m, then calculatethe cost of turfing. (Use 7 = 3.14)

Answer»

Answer:

What do you mean....Can you PLEASE EXPLAIN it further or else you should attach the Figure 4 Diagram..how would we KNOW about figure 4

Discussion

49.	.244x1:: z 44com7y Find the areaof parallelogram whose de b2.com& 1056mArea of paralleleguam 2 bx b2 20 x 15 cm2.300cm.20x15got
Answer» Answer: 244x1 :: z 44com 7y FIND the area of parallelogram whose de B2.com & 1056m Area of PARALLELEGUAM 2 bx b 2 20 x 15 cm 2.300cm. 20x15 got Your answeris 3 Step-by-step explanation:

49.

.244x1:: z 44com7y Find the areaof parallelogram whose de b2.com& 1056mArea of paralleleguam 2 bx b2 20 x 15 cm2.300cm.20x15got

Answer»

Answer:

244x1

:: z 44com

7y FIND the area

of parallelogram whose de B2.com

& 1056m

Area of PARALLELEGUAM 2 bx b

2 20 x 15 cm

2.300cm.

20x15

got

Your answeris 3

Step-by-step explanation:

Discussion

50.	29. The circumference of the base of a cylindrical tank is 44m. If the heightof the tank is 4m, how many litres of water can it hold?
Answer» ANSWER in the attachment hope it will help you here is your answer please MARK my answer as BRAINLIEST please

50.

29. The circumference of the base of a cylindrical tank is 44m. If the heightof the tank is 4m, how many litres of water can it hold?

Answer»

ANSWER in the attachment

hope it will help you

here is your answer please MARK my answer as BRAINLIEST please

Discussion

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⠀⠀⠀⠀⠀__________________________

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The wheel of a bus has a diameter of 2.8 m .how many rotation will wheel complete as the bus travels in 4.2 kmpls ans

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