332354 + Interview Questions in Secondary School in Math

1.	Sjjsjsjsjjejege4worst still so seegrdyrthrwgerggdtryhfytrdjthrstehhtsrh4tsyery5eytrsysty
Answer» Answer: VEINS have thin WALLS because the blood there is no longer under pressure and they have VALVES to ensure blood FLOW in one DIRECTION.

1.

Sjjsjsjsjjejege4worst still so seegrdyrthrwgerggdtryhfytrdjthrstehhtsrh4tsyery5eytrsysty

Answer»

Answer:

VEINS have thin WALLS because the blood there is no longer under pressure and they have VALVES to ensure blood FLOW in one DIRECTION.

Discussion

2.	Find the Lsa Of a cuboid whose dimensional are 10 cm into 20 CM
Answer» Step-by-step EXPLANATION: GIVEN length=10cm breadth=20cm Lsa of cuboid=2(l+b)H >>Lsa=2(10+20)h ( 20+40)h =60hcm

2.

Find the Lsa Of a cuboid whose dimensional are 10 cm into 20 CM

Answer»

Step-by-step EXPLANATION:

GIVEN length=10cm

breadth=20cm

Lsa of cuboid=2(l+b)H

>>Lsa=2(10+20)h

( 20+40)h

=60hcm

Discussion

3.	John had some chocolates. He gave 3/10 of them totally his sister .then he shares the rest equally between himself and 6 other friends. What fraction of chocolates does he get?
Answer» Answer: LET X be the total number of CHOCOLATES chocolates given to the sister = 3/10×x = 3x/10 now chocolates that he got = 3x/10÷7 = 3x/10 × 1/7 = 3x/70 hence he gets 3x/10 of the total no. of chocolates

3.

John had some chocolates. He gave 3/10 of them totally his sister .then he shares the rest equally between himself and 6 other friends. What fraction of chocolates does he get?

Answer»

Answer:

LET X be the total number of CHOCOLATES

chocolates given to the sister = 3/10×x = 3x/10

now chocolates that he got = 3x/10÷7 = 3x/10 × 1/7

= 3x/70

hence he gets 3x/10 of the total no. of chocolates

Discussion

4.	Least number which when divided by 33, 44 and 55, leaves remainder 31, 42, and 53 respectively
Answer» Answer: divided by 33 and gives REMAINDER 31=64 divided by 44 and gives remainder 42=86 divided by 55 and gives remainder 53=108

4.

Least number which when divided by 33, 44 and 55, leaves remainder 31, 42, and 53 respectively

Answer»

Answer:

divided by 33 and gives REMAINDER 31=64

divided by 44 and gives remainder 42=86

divided by 55 and gives remainder 53=108

Discussion

5.	(X+2)/3-(x-6)/5+(2x-1)/15=6 find x
Answer» ANSWER: 63/4 please FIND the ATTACHED IMAGE.

5.

(X+2)/3-(x-6)/5+(2x-1)/15=6 find x

Answer»

ANSWER:

63/4

please FIND the ATTACHED IMAGE.

Discussion

6.	Plz can you explain me chapter-11 ex no.11.4 q.1 (v)
Answer» Answer: which board which GRADE which subject if you TELL this SOMEONE will help

6.

Plz can you explain me chapter-11 ex no.11.4 q.1 (v)

Answer»

Answer:

which board

which GRADE

which subject

if you TELL this SOMEONE will help

Discussion

7.	By selling bag at Rs 120 per piece a shokeper made a profit of 50 %. The percentage profit he will earn if he sellsthem at Rs 160 per piece is
Answer» Answer: 20 RUPPEES profit Step-by-step explanation: 20percentage of PROBABLY

7.

By selling bag at Rs 120 per piece a shokeper made a profit of 50 %. The percentage profit he will earn if he sellsthem at Rs 160 per piece is

Answer»

Answer:

20 RUPPEES profit

Step-by-step explanation:

20percentage of PROBABLY

Discussion

8.	mrs anand needs 15 kg of mangoes to prepare pickles. if 7/2 kg of mangoes cost 200 , how much amount does she need to pay?
Answer» Answer: 15 KG of MANGOES COST 487.5

8.

mrs anand needs 15 kg of mangoes to prepare pickles. if 7/2 kg of mangoes cost 200 , how much amount does she need to pay?

Answer»

Answer:

15 KG of MANGOES COST 487.5

Discussion

9.	3 Aur 4 ke bich me 6 parimey shankhaya gyat ki jiye
Answer» Answer: $\frac{22}{7}, \frac{23}{7}, \frac{24}{7}\frac{25}{7}, \frac{26}{7}, \frac{27}{7}$ Step-by-step explanation: 3 AUR 4 ke BICH me 6 PARIMEY shankhaya GYAT ki jiye, hum parimey shankhaya ko 6 + 1 = 7 har me badlengay $3 = \frac{3 X 7 }{7} = \frac{21}{7} \\4 =\frac{4 X 7 }{7} = \frac{28}{7}\\\\$ 3 Aur 4 ke bich me 6 parimey shankhaya, $\frac{22}{7}, \frac{23}{7}, \frac{24}{7}\frac{25}{7}, \frac{26}{7}, \frac{27}{7}$

9.

3 Aur 4 ke bich me 6 parimey shankhaya gyat ki jiye

Answer»

Answer:

$\frac{22}{7}, \frac{23}{7}, \frac{24}{7}\frac{25}{7}, \frac{26}{7}, \frac{27}{7}$

Step-by-step explanation:

3 AUR 4 ke BICH me 6 PARIMEY shankhaya GYAT ki jiye, hum parimey shankhaya ko 6 + 1 = 7 har me badlengay

$3 = \frac{3 X 7 }{7} = \frac{21}{7} \\4 =\frac{4 X 7 }{7} = \frac{28}{7}\\\\$

3 Aur 4 ke bich me 6 parimey shankhaya,

$\frac{22}{7}, \frac{23}{7}, \frac{24}{7}\frac{25}{7}, \frac{26}{7}, \frac{27}{7}$

Discussion

10.	The price of an item is decreased by 25%. What percent increase must be done in new price to get the original price?
Answer» Answer: 0.25 SANA PO makatulong Step-by-step explanation: 25%=0.25

10.

The price of an item is decreased by 25%. What percent increase must be done in new price to get the original price?

Answer»

Answer:

0.25 SANA PO makatulong

Step-by-step explanation:

25%=0.25

Discussion

11.	What is the addtive inverse of -3
Answer» ANSWER: *The* *additive* *INVERSE* of -3 is 3. Step-by-step EXPLANATION: *The* *additive* *inverse* of a *NUMBER* *MEANS* *changing* *its* *sign. If it is positive* *then* *negative* *and* *vice-versa. for* *example* *the* *additive* *inverse* of -2 is 2 *and* *that* of 4 is -4.

11.

What is the addtive inverse of -3

Answer»

ANSWER:

The additive INVERSE of -3 is 3.

Step-by-step EXPLANATION:

The additive inverse of a NUMBER MEANS changing its sign. If it is positive then negative and vice-versa.

for example the additive inverse of -2 is 2 and that of 4 is -4.

Discussion

12.	3+2=15+3=104+6=168+5=??
Answer» ANSWER: The answer is :- Step-by-step explanation: 8+5=13 • 13 is the CORRECT answer. Hope you LIKE my answer ☺️

12.

3+2=15+3=104+6=168+5=??

Answer»

ANSWER:

The answer is :-

Step-by-step explanation:

8+5=13

• 13 is the CORRECT answer.

Hope you LIKE my answer ☺️

Discussion

13.	Find out the degree of {x}^6x 6
Answer» ANSWER: -6X^(6) Step-by-step EXPLANATION: answris in above

13.

Find out the degree of {x}^6x 6

Answer»

ANSWER:

-6X^(6)

Step-by-step EXPLANATION:

answris in above

Discussion

14.	The factorization of 3x2 – 16x + 16 is
Answer» The FACTORIZATION of 3x2-16x+16 is (3x-4)(x-4)

14.

The factorization of 3x2 – 16x + 16 is

Answer»

The FACTORIZATION of 3x2-16x+16 is (3x-4)(x-4)

Discussion

15.	The length of three sides of a triangle are in the ratio 3:4:5. If the perimeter of triangle is 192m, find area of triangle.
Answer» Answer: let SIDES of triangle of x 3x , 4x ,5x PERIMETER = 192m 3x+4x+5x= 192m 12x= 192m x= 192/12 x=16m a = 3x = 3×16 = 48m b= 4x = 4×16 = 64m c = 5x = 5×16 = 80m using heron's formula $\sqrt{s(s - a)(s - b)(s - c)}$ s= a+b+c/2 s= 96m $\sqrt{96(96 - 48)(96 - 64)(96 - 80)}$ $\sqrt{96 \times 48 \times 32 \times 16}$ 1536m ans

15.

The length of three sides of a triangle are in the ratio 3:4:5. If the perimeter of triangle is 192m, find area of triangle.

Answer»

Answer:

let SIDES of triangle of x

3x , 4x ,5x

PERIMETER = 192m

3x+4x+5x= 192m

12x= 192m

x= 192/12

x=16m

a = 3x = 3×16 = 48m

b= 4x = 4×16 = 64m

c = 5x = 5×16 = 80m

using heron's formula

$\sqrt{s(s - a)(s - b)(s - c)}$

s= a+b+c/2

s= 96m

$\sqrt{96(96 - 48)(96 - 64)(96 - 80)}$

$\sqrt{96 \times 48 \times 32 \times 16}$

1536m ans

Discussion

16.	Eight thousand, nine hundred and eight in denary
Answer» ANSWER:PLEASE GIVE question in PROPER way Step-by-step EXPLANATION:

16.

Eight thousand, nine hundred and eight in denary

Answer»

ANSWER:PLEASE GIVE question in PROPER way

Step-by-step EXPLANATION:

Discussion

17.	Find the radius of hemisphere whose volume is 89.8cm cube
Answer» Answer: Step-by-step EXPLANATION: Given, Volume of the hemisphere = 89.8cm To FIND, Radius of the hemisphere = ? We KNOW, Volume of a hemisphere = 2/3πr³ Let's solve for the radius :- 89.8 = 2/3 x 22/7 x r³ r³ = 89.8 x 3 x 7/2 x 22 r³ = 89.8 x 21/44 r³ = 42.859090

17.

Find the radius of hemisphere whose volume is 89.8cm cube

Answer»

Answer:

Step-by-step EXPLANATION:

Given,

Volume of the hemisphere = 89.8cm

To FIND,

Radius of the hemisphere = ?

We KNOW,

Volume of a hemisphere = 2/3πr³

Let's solve for the radius :-

89.8 = 2/3 x 22/7 x r³

r³ = 89.8 x 3 x 7/2 x 22

r³ = 89.8 x 21/44

r³ = 42.859090

Discussion

18.	A store that sells skates buys them from a manufacturer at a wholesale price of $57. The store’s markup rate is 50%. What price does the store charge its customers for the skates?
Answer» ANSWER: the answer is 2850 the STORE CHARGES 2850

18.

A store that sells skates buys them from a manufacturer at a wholesale price of $57. The store’s markup rate is 50%. What price does the store charge its customers for the skates?

Answer»

ANSWER:

the answer is 2850 the STORE CHARGES 2850

Discussion

19.	Twelve and three thousandths. In decimal form
Answer» Answer: 12.003 Step-by-step explanation: TWELVE will be written as 12 "and" is CONSIDERED as DECIMAL (.) after that they are SAYING that 3 is on the place of thousandths MEANS 3/1000 = 0.003 so ans is 12.003

19.

Twelve and three thousandths. In decimal form

Answer»

Answer:

12.003

Step-by-step explanation:

TWELVE will be written as 12

"and" is CONSIDERED as DECIMAL (.)

after that they are SAYING that 3 is on the place of thousandths MEANS 3/1000 = 0.003

so ans is 12.003

Discussion

20.	Tanya took a loan of Rs.50000 for 5 yrs. she returned 10000 each year to overcome the amount the loan and paid interest annually at the rate of 10% per annum.how much extra amount did she pay back.
Answer» This is your ANSWER HOPE it's HELP you

20.

Tanya took a loan of Rs.50000 for 5 yrs. she returned 10000 each year to overcome the amount the loan and paid interest annually at the rate of 10% per annum.how much extra amount did she pay back.

Answer»

This is your ANSWER

HOPE it's HELP you

Discussion

21.	1\x +1\y=2 and 1\y-1\x=6solve this equation by elimination and substitution methodif you solve this question then i will you make brainlist
Answer» Given EQUATIONS : $\sf \dfrac{<klux>1</klux>}{x} + \dfrac{1}{y} = 2 \: \: \: ...(1)$ $\sf\dfrac{1}{y} - \dfrac{1}{x} = <klux>6</klux> \: \: \: ...(2)$ LET 1/x be u and 1/y be v equation 1 will become, $\sf u + v = 2 \: \: \: ...(3)$ equation 2 will become, $\sf v - u = 6 \: \: \: ...(4)$ by substituting both equation, PUT v = 6 + u in equation (3) $\dashrightarrow \sf u + v = 2$ $\dashrightarrow \sf u + (6 + u) = 2$ $\dashrightarrow \sf 2u = 2 - 6$ $\dashrightarrow \sf 2u = - 4$ $\dashrightarrow \sf u = - 2$ by putting u = -2 in equation (4) $\dashrightarrow \sf v - u = 6$ $\dashrightarrow \sf v - ( - 2) = 6$ $\dashrightarrow \sf v + 2 = 6$ $\dashrightarrow \sf v = 6 - 2$ $\dashrightarrow \sf v = 4$ we know, $\sf \dfrac{1}{x} = u$ $\sf \dfrac{1}{x} = - 2$ $\sf x = - \dfrac{1}{ 2}$ Similarly, $\sf \dfrac{1}{y} = v$ $\sf \dfrac{1}{y} = 4$ $\sf y = \dfrac{1}{4}$ Hence, $\boxed{ \sf x = - \dfrac{1}{ 2} } \sf \: \: \: and \: \: \: \boxed{ \sf y = \dfrac{1}{4} }$

21.

1\x +1\y=2 and 1\y-1\x=6solve this equation by elimination and substitution methodif you solve this question then i will you make brainlist

Answer»

Given EQUATIONS :

$\sf \dfrac{<klux>1</klux>}{x} + \dfrac{1}{y} = 2 \: \: \: ...(1)$

$\sf\dfrac{1}{y} - \dfrac{1}{x} = <klux>6</klux> \: \: \: ...(2)$

LET 1/x be u and 1/y be v

equation 1 will become,

$\sf u + v = 2 \: \: \: ...(3)$

equation 2 will become,

$\sf v - u = 6 \: \: \: ...(4)$

by substituting both equation,

PUT v = 6 + u in equation (3)

$\dashrightarrow \sf u + v = 2$

$\dashrightarrow \sf u + (6 + u) = 2$

$\dashrightarrow \sf 2u = 2 - 6$

$\dashrightarrow \sf 2u = - 4$

$\dashrightarrow \sf u = - 2$

by putting u = -2 in equation (4)

$\dashrightarrow \sf v - u = 6$

$\dashrightarrow \sf v - ( - 2) = 6$

$\dashrightarrow \sf v + 2 = 6$

$\dashrightarrow \sf v = 6 - 2$

$\dashrightarrow \sf v = 4$

we know,

$\sf \dfrac{1}{x} = u$

$\sf \dfrac{1}{x} = - 2$

$\sf x = - \dfrac{1}{ 2}$

Similarly,

$\sf \dfrac{1}{y} = v$

$\sf \dfrac{1}{y} = 4$

$\sf y = \dfrac{1}{4}$

Hence,

$\boxed{ \sf x = - \dfrac{1}{ 2} } \sf \: \: \: and \: \: \: \boxed{ \sf y = \dfrac{1}{4} }$

Discussion

22.	Find each of the following products..(4x +9) x (x - 6)
Answer» ANSWER: NIKAL Step-by-step EXPLANATION: *hdffddxfghibvrxsschnvcfrdyjbvfftfghhfffcgyyfhhhhgdfgrffytfghhuugguythhuuyghhutghhhhhfvbhh.yg*

22.

Find each of the following products..(4x +9) x (x - 6)

Answer»

ANSWER:

NIKAL

Step-by-step EXPLANATION:

hdffddxfghibvrxsschnvcfrdyjbvfftfghhfffcgyyfhhhhgdfgrffytfghhuugguythhuuyghhutghhhhhfvbhh.yg

Discussion

23.	26. A consumer group surveyed the prices for a certain item in five different stores, and reported theaverage price as $15. We visited four of the five stores, and found the prices to be $10, $15, $15 and$25. Assuming that the consumer group is correct, what is price of the item at the store that we did notvisit?$10b. $15$20d. $25392 CMATC.
Answer» ANSWER: GOOD NIGHT Step-by-step EXPLANATION: FRIENDS

23.

26. A consumer group surveyed the prices for a certain item in five different stores, and reported theaverage price as $15. We visited four of the five stores, and found the prices to be $10, $15, $15 and$25. Assuming that the consumer group is correct, what is price of the item at the store that we did notvisit?$10b. $15$20d. $25392 CMATC.

Answer»

ANSWER:

GOOD NIGHT

Step-by-step EXPLANATION:

FRIENDS

Discussion

24.	प्रश्न4.दिए गए चित्र के आधार पर निम्न सारणी को पूर्ण करो।2342Ao%कोणों के प्रकारदर्शाने वाले कोणअंत:कोणबाह्य कोणसंगत कोणएकान्तर कोण2
Answer» ANSWER: sbdbehsjsnsshehhehehehehe

24.

प्रश्न4.दिए गए चित्र के आधार पर निम्न सारणी को पूर्ण करो।2342Ao%कोणों के प्रकारदर्शाने वाले कोणअंत:कोणबाह्य कोणसंगत कोणएकान्तर कोण2

Answer»

ANSWER:

sbdbehsjsnsshehhehehehehe

Discussion

25.	Is it possible for two numbers to have HCF as 12 and LCM as350?Answer This Question ↑↑
Answer» ONE property between of HCF and LCM of two numbers is that LCM is ALWAYS the multiple of HCF. ______________________________________ For example. Consider two numbers - 45 and 70. HCF - 5 And LCM - 630 Here you can SEE that LCM is multiple of the HCF. _______________________________________ Here LCM is 350 which is not the multiple of HCF so the given condition is not possible. Now you can take any other numbers of your choice, find their LCM and HCF, and answer your own question. $\\ \\$

25.

Is it possible for two numbers to have HCF as 12 and LCM as350?Answer This Question ↑↑

Answer»

ONE property between of HCF and LCM of two numbers is that LCM is ALWAYS the multiple of HCF.

______________________________________

For example.

Consider two numbers - 45 and 70.

HCF - 5

And LCM - 630

Here you can SEE that LCM is multiple of the HCF.

_______________________________________

Here LCM is 350 which is not the multiple of HCF so the given condition is not possible.

Now you can take any other numbers of your choice, find their LCM and HCF, and answer your own question.

$\\ \\$

Discussion

26.	IF ΔABC~ΔPOR,B = 40 and R = 60° then find A.
Answer» GREAT OUS LIKE but SIR do not KNOW

26.

IF ΔABC~ΔPOR,B = 40 and R = 60° then find A.

Answer»

GREAT OUS LIKE but SIR do not KNOW

Discussion

27.	Prove that root 2 is irrational
Answer» ANSWER: plz MARK me BRAINLIST and I hope this answer is help you

27.

Prove that root 2 is irrational

Answer»

ANSWER:

plz MARK me BRAINLIST and I hope this answer is help you

Discussion

28.	Find the values of x andy in the followingparallelogram69120°(5x+10)
Answer» ANSWER: the QUESTION is INCOMPLETE.

28.

Find the values of x andy in the followingparallelogram69120°(5x+10)

Answer»

ANSWER:

the QUESTION is INCOMPLETE.

Discussion

29.	Find the remainder when x2 + 2x + 1 is dividedby x + 1.
Answer» HOPE it's HELPFUL for you.

29.

Find the remainder when x2 + 2x + 1 is dividedby x + 1.

Answer»

HOPE it's HELPFUL for you.

Discussion

30.	Can you think of ways for making a measuring bottle which can measure, 10 ml, 20 ml, 30 ml, __________, 60 ml? Discuss with your friend?
Answer» Answer: 40 ML,50 ml, 60 ml, 70 ml, 80 ml ,90 ml ,100 ml

30.

Can you think of ways for making a measuring bottle which can measure, 10 ml, 20 ml, 30 ml, __________, 60 ml? Discuss with your friend?

Answer»

Answer:

40 ML,50 ml, 60 ml, 70 ml, 80 ml ,90 ml ,100 ml

Discussion

31.	Please tell ASAP. sole the equation
Answer» ANSWER: x=39/4 Step-by-step EXPLANATION:

31.

Please tell ASAP. sole the equation

Answer»

ANSWER:

x=39/4

Step-by-step EXPLANATION:

Discussion

32.	.Which of the following is not an equationа ax+s=22ztahbс c2x + ty-syS1-9.og + 3x С332storyouat thehehana
Answer» ANSWER: what a LOVELY QUESTION BYE bye

32.

.Which of the following is not an equationа ax+s=22ztahbс c2x + ty-syS1-9.og + 3x С332storyouat thehehana

Answer»

ANSWER:

what a LOVELY QUESTION BYE bye

Discussion

33.	Show that cos⁴(pi/8)+cos⁴(3pi/8)+cos⁴(5pi/8)+cos⁴(7pi/8)=3/2
Answer» Answer: Biology is the NATURAL SCIENCE that studies LIFE and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and EVOLUTION. Despite the complexity of the science, certain unifying concepts consolidate it into a single, coherent field.

33.

Show that cos⁴(pi/8)+cos⁴(3pi/8)+cos⁴(5pi/8)+cos⁴(7pi/8)=3/2

Answer»

Answer:

Biology is the NATURAL SCIENCE that studies LIFE and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and EVOLUTION. Despite the complexity of the science, certain unifying concepts consolidate it into a single, coherent field.

Discussion

34.	Which term of the sequence 28,25,22is the first negative term
Answer» ANSWER: 19 is the CORRECT answer of this

34.

Which term of the sequence 28,25,22is the first negative term

Answer»

ANSWER:

19 is the CORRECT answer of this

Discussion

35.	1ercise 3.4of cross multiplication.2.X у+ = 4.:,6 15X у3- 43 12 4
Answer» ANSWER: hahahhhahahahahahahahahahhahahahahahahahahahahahahahahaahahhhahahahaaaahhhhaahhhhhahhhhhhahhhhahhhhhhh☺

35.

1ercise 3.4of cross multiplication.2.X у+ = 4.:,6 15X у3- 43 12 4

Answer»

ANSWER:

hahahhhahahahahahahahahahhahahahahahahahahahahahahahahaahahhhahahahaaaahhhhaahhhhhahhhhhhahhhhahhhhhhh☺

Discussion

36.	3) Prove that the sum of exterior angles of a triangle, obtained by extending its sides in the same direction is 360°.
Answer» ANSWER: Hope that this was helpful Step-by-step explanation: CONSIDER ΔABC in which ∠A = 1, ∠B = 2 and ∠C = 3 Let the exterior angles of A, B and C be ∠a, ∠b and ∠c respectively. Recall that sum of angles in a triangle is 180° That is ∠1 + ∠2 + ∠3 = 180° From the figure, we have ∠1 + ∠a = 180° [Linear pair] ∠2 + ∠b = 180° [Linear pair] ∠3 + ∠c = 180° [Linear pair] ADD the above three equations, we GET ∠1 + ∠a + ∠2 + ∠b + ∠3 + ∠c = 180° + 180° + 180° ⇒ (∠1 + ∠2 + ∠3) + ∠a + ∠b + ∠c = 540° ⇒ 180°+ ∠a + ∠b + ∠c = 540° ⇒ ∠a + ∠b + ∠c = 540° – 180° = 360° Thus sum of exterior angles of a triangle is 360°. follow

36.

3) Prove that the sum of exterior angles of a triangle, obtained by extending its sides in the same direction is 360°.

Answer»

ANSWER:

Hope that this was helpful

Step-by-step explanation:

CONSIDER ΔABC in which ∠A = 1, ∠B = 2 and ∠C = 3 Let the exterior angles of A, B and C be ∠a, ∠b and ∠c respectively. Recall that sum of angles in a triangle is 180° That is ∠1 + ∠2 + ∠3 = 180° From the figure, we have ∠1 + ∠a = 180° [Linear pair] ∠2 + ∠b = 180° [Linear pair] ∠3 + ∠c = 180° [Linear pair] ADD the above three equations, we GET ∠1 + ∠a + ∠2 + ∠b + ∠3 + ∠c = 180° + 180° + 180° ⇒ (∠1 + ∠2 + ∠3) + ∠a + ∠b + ∠c = 540° ⇒ 180°+ ∠a + ∠b + ∠c = 540° ⇒ ∠a + ∠b + ∠c = 540° – 180° = 360° Thus sum of exterior angles of a triangle is 360°.

follow

Discussion

37.	Find H.C.F. and L.C.M. of 220 and 284 by Prime factorisation method.
Answer» ANSWER: Step-by-step explanation: 220=22255 284=2271 here H.C.F=common FACTORS i.e22=(Ans) and LCM=common factorsnon common factors i.e 22255*71=(Ans)

37.

Find H.C.F. and L.C.M. of 220 and 284 by Prime factorisation method.

Answer»

ANSWER:

Step-by-step explanation:

220=2*2*2*5*5 284=2*2*71 here H.C.F=common FACTORS i.e2*2=(Ans) and LCM=common factors*non common factors i.e 2*2*2*5*5*71=(Ans)

Discussion

38.	Solve 2(3x +2)=4(5-x)
Answer» Step-by-step EXPLANATION: ANSWER hai one LIKEE it plsssss

38.

Solve 2(3x +2)=4(5-x)

Answer»

Step-by-step EXPLANATION:

ANSWER hai

one LIKEE it

plsssss

Discussion

39.	Ganesh travelled a distance of 108 kmby a car in 2 hours. His speed in metresper second is( )A) 15B) 54C) 27 D) 30
Answer» Answer: His speed in metres per SECOND is 15 m/sec. Step-by-step explanation: Given that: Ganesh TRAVELLED a distance of 108 km. TIME taken to cover the distance = 2 HOURS Converting the distance in m: 1 km = 1000 m 108 km = (108 × 1000) m = 108000 m Converting time in second: 1 hour = 3600 seconds 2 hours = (2 × 3600) seconds = 7200 seconds Finding the speed: Speed = Distance/Time Speed = 108000/7200 m/sec Speed = 15 m/sec

39.

Ganesh travelled a distance of 108 kmby a car in 2 hours. His speed in metresper second is( )A) 15B) 54C) 27 D) 30

Answer»

Answer:

His speed in metres per SECOND is 15 m/sec.

Step-by-step explanation:

Given that:

Ganesh TRAVELLED a distance of 108 km.
TIME taken to cover the distance = 2 HOURS

Converting the distance in m:

1 km = 1000 m
108 km = (108 × 1000) m = 108000 m

Converting time in second:

1 hour = 3600 seconds
2 hours = (2 × 3600) seconds = 7200 seconds

Finding the speed:

Speed = Distance/Time
Speed = 108000/7200 m/sec
Speed = 15 m/sec

Discussion

40.	ખર્ચ { 200 પ્રતિ મીટ લેખે શોધો.છે. એક લંબઘન ખોખાનાં માપનું પ્રમાણ 6: 4 : 3 છે. તે ખોખાનીકુલ સપાટીને સફેદ કાગળથી શણગારવાનો ભાવ 2 / સેમીછે જ્યારે રંગીન કાગળથી શણગારવાનો ભાવ 2.50 / સેમીછે. જો સફેદ કાગળના બદલે રંગીન કાગળથી શણગારવામાં{ 1350 ખર્ચ વધુ થતો હોય, તો તે ખોખાનાં માપ શોધો.ત્રિજ્યા પણ કહે છે. આમ, નળાકારની ત્રિજ્યા એટલે નળાકારનાપાયાની ત્રિજ્યા તેમ સમજવું.
Answer» Step-by-step EXPLANATION: FOSSIL RISK so STILL so so so so do do

40.

ખર્ચ { 200 પ્રતિ મીટ લેખે શોધો.છે. એક લંબઘન ખોખાનાં માપનું પ્રમાણ 6: 4 : 3 છે. તે ખોખાનીકુલ સપાટીને સફેદ કાગળથી શણગારવાનો ભાવ 2 / સેમીછે જ્યારે રંગીન કાગળથી શણગારવાનો ભાવ 2.50 / સેમીછે. જો સફેદ કાગળના બદલે રંગીન કાગળથી શણગારવામાં{ 1350 ખર્ચ વધુ થતો હોય, તો તે ખોખાનાં માપ શોધો.ત્રિજ્યા પણ કહે છે. આમ, નળાકારની ત્રિજ્યા એટલે નળાકારનાપાયાની ત્રિજ્યા તેમ સમજવું.

Answer»

Step-by-step EXPLANATION:

FOSSIL RISK so STILL so so so so do do

Discussion

41.	(x+6)+(x+3)=(x+7)+(x+11)
Answer» Answer: 2X + 9 = 2x + 19 2x-2x = 19-9 =10

41.

(x+6)+(x+3)=(x+7)+(x+11)

Answer»

Answer:

2X + 9 = 2x + 19

2x-2x = 19-9

=10

Discussion

42.	Factorise the following equation :—
Answer» XY(y²+x²)(y+x)y-x) is the EQUATION

42.

Factorise the following equation :—

Answer»

XY(y²+x²)(y+x)y-x) is the EQUATION

Discussion

43.	In a college, 60 students enrolled in chemistry, 40 in physics, 30 in biology, 15 in chemistry and physics, 10 in physics and biology and 5 in biology and chemistry. No one enrolled is all three. How many students enrolled in atleast one subject?
Answer» Answer: 160 MARK me as BRAINLIEST

43.

In a college, 60 students enrolled in chemistry, 40 in physics, 30 in biology, 15 in chemistry and physics, 10 in physics and biology and 5 in biology and chemistry. No one enrolled is all three. How many students enrolled in atleast one subject?

Answer»

Answer:

160

MARK me as BRAINLIEST

Discussion

44.	A chord of a circle subtends an angle of 60 degree at the centre . if the length of the chord is 100 cm , find the area of the major segment
Answer» Answer: 25cmsquare I HOPE it HELPS you PLEASE LARK me as a BRAINLIST

44.

A chord of a circle subtends an angle of 60 degree at the centre . if the length of the chord is 100 cm , find the area of the major segment

Answer»

Answer:

25cmsquare

I HOPE it HELPS you

PLEASE LARK me as a BRAINLIST

Discussion

45.	27. The value of1 /2×1/3÷1/5×1/6
Answer» ANSWER: EASY Step-by-step EXPLANATION: easy easy easy easy easy easy easy

45.

27. The value of1 /2×1/3÷1/5×1/6

Answer»

ANSWER:

EASY

Step-by-step EXPLANATION:

easy easy easy easy easy easy easy

Discussion

46.	3. Identify the pairs of equivalent ratios(i) 3:5 and 5:3
Answer» Answer: 3/5>5/3 Step-by-step explanation: 3:5=3/5 and 5:3=5/3 now, lcm of 5 and 3=3 making The denominator of each fraction =3, we have 3/5=3into5/5into5 =15/25 and the other fraction =5/3 of 15/25 and 5/3, clearly 15/25>5/3. therefore, 3/4>5/3. I HOPE you happy

46.

3. Identify the pairs of equivalent ratios(i) 3:5 and 5:3

Answer»

Answer:

3/5>5/3

Step-by-step explanation:

3:5=3/5 and 5:3=5/3

now, lcm of 5 and 3=3

making The denominator of each fraction =3, we have

3/5=3into5/5into5 =15/25 and the other fraction =5/3

of 15/25 and 5/3, clearly 15/25>5/3.

therefore, 3/4>5/3.

I HOPE you happy

Discussion

47.	BeLetf: RR and g: RR definedbyf(x) = 2x² +3x +5 and g(x) = 4x-5. Thenthe value of fog (o) is
Answer» Step-by-step EXPLANATION: let x={1, 2,3,4} and y={a, b, c}, then the MAPPING F:x--->y defined by f(1) =a, f(2) =b, f(3) =a, f(4) =b is

47.

BeLetf: RR and g: RR definedbyf(x) = 2x² +3x +5 and g(x) = 4x-5. Thenthe value of fog (o) is

Answer»

Step-by-step EXPLANATION:

let x={1, 2,3,4} and y={a, b, c}, then the MAPPING F:x--->y defined by f(1) =a, f(2) =b, f(3) =a, f(4) =b is

Discussion

48.	Aamir decides to colour every 18th square in blue and every 24th square in yellow on a100s chart. Which is the first square that will have both colours?(LCM by commondivision method)
Answer» LCM of 18 and 24 is 72 so both the COLOURS will COME together in the 72nd square of the CHART

48.

Aamir decides to colour every 18th square in blue and every 24th square in yellow on a100s chart. Which is the first square that will have both colours?(LCM by commondivision method)

Answer»

LCM of 18 and 24 is 72

so both the COLOURS will COME together in the 72nd square of the CHART

Discussion

49.	Practice Set 501. Expandab(1) (5a + 6b)2 3(iii) (2p - 39)(iv)(iv)(v) (ar + by)(vi) (7m - 4) (vii)(vi) (7m - 43 (vi) (-(viii) a
Answer» Answer: 2! +-&_'466'bugxdrhbc4536763;+₹#&(;:"'n

49.

Practice Set 501. Expandab(1) (5a + 6b)2 3(iii) (2p - 39)(iv)(iv)(v) (ar + by)(vi) (7m - 4) (vii)(vi) (7m - 43 (vi) (-(viii) a

Answer»

Answer:

2! +-&_'466'bugxdrhbc4536763;+₹#&(;:"'n

Discussion

50.	Find each of the following products:1. (5x + 7) (3x +4)
Answer» Answer: (5x + 7) × (3x + 4) ⇒5x (3x + 4) + 7 (3x + 4) ⇒15X2 + 20X + 21X + 28 ⇒ 15x2 + 41X + 28

50.

Find each of the following products:1. (5x + 7) (3x +4)

Answer»

Answer:

(5x + 7) × (3x + 4)

⇒5x (3x + 4) + 7 (3x + 4)

⇒15X2 + 20X + 21X + 28

⇒ 15x2 + 41X + 28

Discussion

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