332354 + Interview Questions in Secondary School in Math

1.	Find 30 Percent of 18.
Answer» ANSWER: 5.8 Step-by-step explanation: 30/100×18= 5.8 this is the answer for UR QUESTION

1.

Find 30 Percent of 18.

Answer»

ANSWER:

5.8

Step-by-step explanation:

30/100×18= 5.8

this is the answer for UR QUESTION

Discussion

2.	6. In the figure, / is the line of symmetry.Draw the image of the triangle and complete the diagramso that it becomes symmetric.13.3 Figures with Two Lines of Symmetry
Answer» ANSWER: yes U R right BRO good

2.

6. In the figure, / is the line of symmetry.Draw the image of the triangle and complete the diagramso that it becomes symmetric.13.3 Figures with Two Lines of Symmetry

Answer»

ANSWER:

yes U R right BRO good

Discussion

3.	Express 16/81and -16/81as power of a rational number
Answer» Answer: 16/81=4^2/9^2 and -16/81=-16/9^2 Step-by-step EXPLANATION:

3.

Express 16/81and -16/81as power of a rational number

Answer»

Answer:

16/81=4^2/9^2 and -16/81=-16/9^2

Step-by-step EXPLANATION:

Discussion

4.	Classify the following as rational or irrational number a) 7 root7 / root 343 b) root 5× root 125 c) pie d) underoot 3 27
Answer» Answer: 7 is RATIONAL and root 7 is irrational also C and d is also irrational. hope it HELPS you

4.

Classify the following as rational or irrational number a) 7 root7 / root 343 b) root 5× root 125 c) pie d) underoot 3 27

Answer»

Answer:

7 is RATIONAL and root 7 is irrational also C and d is also irrational.

hope it HELPS you

Discussion

5.	.Find the range of sin−12+12+2
Answer» Answer: 1. 2+ 1 =3 2.2+2=4 Step-by-step EXPLANATION: am NT UNDERSTANDING your question

5.

.Find the range of sin−12+12+2

Answer»

Answer:

1. 2+ 1 =3

2.2+2=4

Step-by-step EXPLANATION:

am NT UNDERSTANDING your question

Discussion

6.	If x square minus 2 root 5 P X + 15 is equal to zero has two equal roots then find the value of p
Answer» ANSWER: Step-by-step EXPLANATION:

6.

If x square minus 2 root 5 P X + 15 is equal to zero has two equal roots then find the value of p

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

7.	3678 is divisible by 2 or not if it is divisible give reason
Answer» ANSWER: YES IT IS DIVISIBLE BY 2 ............ Step-by-step explanation: 3678/2=1,839

7.

3678 is divisible by 2 or not if it is divisible give reason

Answer»

ANSWER:

YES IT IS DIVISIBLE BY 2 ............

Step-by-step explanation:

3678/2=1,839

Discussion

8.	Write only answers pls...............
Answer» 26/25 2 1 3 digits 75/8, 0 6 2 + 8√3 log 30 2 -8 real numbers 1 n = 2K + 1, K ε Z rational 4 a = b 1 2 terminating k = 0

Discussion

9.	Q16) In a class of 35 students, 17 have taken math, 10 have taka maths but noteconomics. Find number of students have taken both maths and economics and thenumber of students who have taken ou but not maths. if it is given that eachstudent either took maths or economics or both (718)
Answer» Answer: 7 Step-by-step explanation: 17-10 is 7 btw what is OU? i SAY that it is a TYPO

9.

Q16) In a class of 35 students, 17 have taken math, 10 have taka maths but noteconomics. Find number of students have taken both maths and economics and thenumber of students who have taken ou but not maths. if it is given that eachstudent either took maths or economics or both (718)

Answer»

Answer:

7

Step-by-step explanation:

17-10 is 7

btw what is OU?

i SAY that it is a TYPO

Discussion

10.	Prove that is irrational.
Answer» Step-by-step EXPLANATION: $Let's \: prove \: this \: by \: the \: method \: of \: contradiction- Say, √5 \: is \: a \: rational \: number. ∴ It \: can \: be \: expressed \: in \: the \: form \: p/q \: where \: p,q \: are \: co-prime \: integers. \: ⇒√5=p/q \: ⇒5=p²/q² \: {Squaring \: both \: the \: sides} \: ⇒5q²=p² \: (1) \: ⇒p² \: is \: a \: multiple \: of \: 5. \: {Euclid's Division Lemma} \: ⇒ \: p \: is \: also \: a \: multiple \: of \: 5. \: {Fundamental \: Theorem \: of \: arithmetic} \: \: ⇒p=5m \: ⇒p²=25m² \: (2) \: \: From \: equations \: (1) \: and \: (2), \: we \: get, \: 5q²=25m² \: ⇒q²=5m² \: ⇒ \: q² \: is \: a \: multiple \: of \: 5. \: {Euclid's \: Division \: Lemma} \: ⇒ \: q \: is \: a \: multiple \: of \: 5. \: {Fundamental \: \: Theorem \: of \: Arithmetic} \: \: Hence, \: p,q \: have \: a \: common \: factor \: 5. \: this \: contradicts \: that \: they \: are \: co-primes. \: Therefore, \: p/q \: is \: not \: a \: rational \: number. \: This \: proves \: that \: √5 \: is \: an \: irrational \: number. \: For \: the \: second \: query, \: as \: we've \: proved \: √5 \: irrational. \: Therefore \: 2-√5 \: is \: also \: irrational \: because \: difference \: of \: a \: rational \: and \: an \: irrational \: number \: is \: always \: an \: irrational \: number.$

10.

Prove that is irrational.

Answer»

Step-by-step EXPLANATION:

$Let's \: prove \: this \: by \: the \: method \: of \: contradiction- Say, √5 \: is \: a \: rational \: number. ∴ It \: can \: be \: expressed \: in \: the \: form \: p/q \: where \: p,q \: are \: co-prime \: integers. \: ⇒√5=p/q \: ⇒5=p²/q² \: {Squaring \: both \: the \: sides} \: ⇒5q²=p² \: (1) \: ⇒p² \: is \: a \: multiple \: of \: 5. \: {Euclid's Division Lemma} \: ⇒ \: p \: is \: also \: a \: multiple \: of \: 5. \: {Fundamental \: Theorem \: of \: arithmetic} \: \: ⇒p=5m \: ⇒p²=25m² \: (2) \: \: From \: equations \: (1) \: and \: (2), \: we \: get, \: 5q²=25m² \: ⇒q²=5m² \: ⇒ \: q² \: is \: a \: multiple \: of \: 5. \: {Euclid's \: Division \: Lemma} \: ⇒ \: q \: is \: a \: multiple \: of \: 5. \: {Fundamental \: \: Theorem \: of \: Arithmetic} \: \: Hence, \: p,q \: have \: a \: common \: factor \: 5. \: this \: contradicts \: that \: they \: are \: co-primes. \: Therefore, \: p/q \: is \: not \: a \: rational \: number. \: This \: proves \: that \: √5 \: is \: an \: irrational \: number. \: For \: the \: second \: query, \: as \: we've \: proved \: √5 \: irrational. \: Therefore \: 2-√5 \: is \: also \: irrational \: because \: difference \: of \: a \: rational \: and \: an \: irrational \: number \: is \: always \: an \: irrational \: number.$

Discussion

11.	Express 27/64and -27/64 as power of a rational number
Answer» Answer: 27 ___ 64 Step-by-step EXPLANATION: -27 ___ 64 -27'1 _____ 64

11.

Express 27/64and -27/64 as power of a rational number

Answer»

Answer:

27

___

64

Step-by-step EXPLANATION:

-27

___

64

-27'1

_____

64

Discussion

12.	Can you plzzzz help in finding this plzzzzzz
Answer» Step-by-step explanation: 50/2=25.... ANSWERS .....

12.

Can you plzzzz help in finding this plzzzzzz

Answer»

Step-by-step explanation:

50/2=25....

ANSWERS

.....

Discussion

13.	Provethat tan32°+cot53 °-cosec80°=tan37°+cot58°-sec10°
Answer» Step-by-step EXPLANATION: CHECK the ANSWERS....

13.

Provethat tan32°+cot53 °-cosec80°=tan37°+cot58°-sec10°

Answer»

Step-by-step EXPLANATION:

CHECK the ANSWERS....

Discussion

14.	4/7÷6/7of8/9+1/4 slove pl
Answer» ANSWER: =>(4/6)(8/9)+1/4 =>(16/27)+1/4 =>(64+27)/108 =>91/108

14.

4/7÷6/7of8/9+1/4 slove pl

Answer»

ANSWER:

=>(4/6)(8/9)+1/4

=>(16/27)+1/4

=>(64+27)/108

=>91/108

Discussion

15.	Qucns. Each question has 4 choices (1). (2), (3) and (4)Uul or which ONLY ONE is comect.1.Ir V1369 + 70.0615 + x = 37.25. then x is equal to(1) 10-(2) 10-2(3) 10-(4) 10
Answer» Answer: 10-2 BHAI PLEASE MAKE a BRILLIANT

15.

Qucns. Each question has 4 choices (1). (2), (3) and (4)Uul or which ONLY ONE is comect.1.Ir V1369 + 70.0615 + x = 37.25. then x is equal to(1) 10-(2) 10-2(3) 10-(4) 10

Answer»

Answer:

10-2 BHAI PLEASE MAKE a BRILLIANT

Discussion

16.	128÷32 in simplest exponential from
Answer» 128÷32 = 4 follow me mark me as BRAINLIEST

16.

128÷32 in simplest exponential from

Answer»

128÷32

= 4

follow me

mark me as BRAINLIEST

Discussion

17.	find the sum of two numbers, if one number is 41627 and the other is 1235 greater than the first number
Answer» Answer: This US the answer. Hope it helps. Step-by-step explanation: If YES? MARK me as the brainliest

17.

find the sum of two numbers, if one number is 41627 and the other is 1235 greater than the first number

Answer»

Answer:

This US the answer. Hope it helps.

Step-by-step explanation:

If YES? MARK me as the brainliest

Discussion

18.	If x=logaBC,y=logbCA,z=logcAB then x+y+z=xyz-2
Answer» x = log a (bc) y= log b (ca) z= log c (ab) PROVE that : x+ y + z + 2 = xyz We will start from LEFT side: x+ y + z + 2 = log a (bc) + log b (ca) + log c (ab) + 2 We know that: log b (x) = log a (x) + log a (b) LET us the BASE 10 as a: ==> (log bc/ log a)+(log ca/log b) +(log ab)/ log c) + 2 We know that log ab = log a + log b ==> (log c + log b)/ log a +(log c + log a)/log b +(log a + log b)/log c + 2 .........(1) Now let us calculate xyz: xyz= log a (bc)* log b (ac)* log c (ab) = log bc/ log a * log ac / log b * log ab/ log c =(log b + log c)(log a + log c)(log a + log b)/ log alogblogc =[ logb(loga)^2 + logblogcloga + logc(loga)^2 + loga(logc)^2+ loga(logb)^2 + logc(logb)^2 + logalogblogc + logb(logc)^2]/logalogblogc = loga/logc + 1 + loga/logb + logc/logb + logb/logc + logb/loga + 1 + logc/loga = (loga+logb)/logc + (loga+logc)/logb + (logb+logc)/loga + 2 .....(2) Now we can see that (1) and (2) are identical. Then we conclude that: x+y+z+2 = xyz

18.

If x=logaBC,y=logbCA,z=logcAB then x+y+z=xyz-2

Answer»

x = log a (bc)

y= log b (ca)

z= log c (ab)

PROVE that :

x+ y + z + 2 = xyz

We will start from LEFT side:

x+ y + z + 2 = log a (bc) + log b (ca) + log c (ab) + 2

We know that: log b (x) = log a (x) + log a (b)

LET us the BASE 10 as a:

==> (log bc/ log a)+(log ca/log b) +(log ab)/ log c) + 2

We know that log ab = log a + log b

==> (log c + log b)/ log a +(log c + log a)/log b +(log a + log b)/log c + 2 .........(1)

Now let us calculate xyz:

xyz= log a (bc)* log b (ac)* log c (ab)

= log bc/ log a * log ac / log b * log ab/ log c

=(log b + log c)(log a + log c)(log a + log b)/ log a*logb*logc

=[ logb(loga)^2 + logb*logc*loga + logc(loga)^2 + loga(logc)^2+ loga(logb)^2 + logc(logb)^2 + loga*logb*logc + logb(logc)^2]/loga*logb*logc

= loga/logc + 1 + loga/logb + logc/logb + logb/logc + logb/loga + 1 + logc/loga

= (loga+logb)/logc + (loga+logc)/logb + (logb+logc)/loga + 2 .....(2)

Now we can see that (1) and (2) are identical.

Then we conclude that:

x+y+z+2 = xyz

Discussion

19.	2690 is divisible by 2 or not if it is divisible give reason
Answer» Answer: Its DIVISIBLE Step-by-step EXPLANATION: REASON: any NUMBER that ends with 0,2,4,6,8 are divisible by 2

19.

2690 is divisible by 2 or not if it is divisible give reason

Answer»

Answer:

Its DIVISIBLE

Step-by-step EXPLANATION:

REASON: any NUMBER that ends with 0,2,4,6,8 are divisible by 2

Discussion

20.	Find out the square root of 225 by factorisationmethod
Answer» ANSWER: $\sqrt{225} = 15$

20.

Find out the square root of 225 by factorisationmethod

Answer»

ANSWER:

$\sqrt{225} = 15$

Discussion

21.	6ke power 3ko 6kramagat bisham sankhya ke jod ke rup me likhe
Answer» sprry and a GREAT week so you know what the heck to you on Friday the following is your responsibility of my friends to do with it and make them the only DIFFERENCE if you're right direction you know I can you give a lot for me but if we do it again in my life and I HOPE your weekend with that WOULD love that they would

Discussion

22.	123.123is ______ decimal
Answer» Answer: terminating Step-by-step explanation: as their is no bar SIGN on the DECIMAL numbers and also it is not CONTINUING FOREVER. the numbers are just 123 after the decimal

22.

123.123is ______ decimal

Answer»

Answer:

terminating

Step-by-step explanation:

as their is no bar SIGN on the DECIMAL numbers and also it is not CONTINUING FOREVER. the numbers are just 123 after the decimal

Discussion

23.	P and Q together can built a room in 60 days. If P is twice as good as Q, in how many days will P alone finish his work?
Answer» Answer: 40 days please MARK as BRAINLIST

23.

P and Q together can built a room in 60 days. If P is twice as good as Q, in how many days will P alone finish his work?

Answer»

Answer:

40 days

please MARK as BRAINLIST

Discussion

24.	(5) A body of mass 800 gm. is moving with a velocity of 3 cm/s. Calculate the distance it movesbefore to coming rest under a force of 9000 dyne
Answer» ANSWER: m=40g,4×10 −2 KG,v=2cm/s=2×10 −2 m/s N=mg (4×10 −2 )9.8N 39.2×10 −2 N 0.392N Step-by-step EXPLANATION:

24.

(5) A body of mass 800 gm. is moving with a velocity of 3 cm/s. Calculate the distance it movesbefore to coming rest under a force of 9000 dyne

Answer»

ANSWER:

m=40g,4×10

−2

KG,v=2cm/s=2×10

−2

m/s

N=mg

(4×10

−2

)9.8N

39.2×10

−2

N

0.392N

Step-by-step EXPLANATION:

Discussion

25.	Angle sum property of a triangle isequal to
Answer» ANSWER: This property states that the sum of all the ANGLES of a TRIANGLE is 180 degree. Mark as brainliest

25.

Angle sum property of a triangle isequal to

Answer»

ANSWER:

This property states that the sum of all the ANGLES of a TRIANGLE is 180 degree.

Mark as brainliest

Discussion

26.	Find the two straight line from by the pair of straight line
Answer» Let the equation ax2 + 2hxy + BY2 + 2gx + 2fy + c = 0 REPRESENTS the straight lines y = M1X + c1 and y = m2x + c2. ❤︎█▬█ █ ▀█▀ ʟɪᴋᴇ❤︎ $ᴏᴘ body { margin:0; padding:0px; background:#02101b; text-align:center ; min-height:100vh; font-weight:bold; font-size:20px; font-family:arial; color:white; } a:before{ content:$

Discussion

27.	Solve this pls..................
Answer» ANSWER: MK×JN Step-by-step EXPLANATION: MARK me as the BRAINLIEST PLZ plz plz

27.

Solve this pls..................

Answer»

ANSWER:

MK×JN

Step-by-step EXPLANATION:

MARK me as the BRAINLIEST PLZ plz plz

Discussion

28.	6. How many three digit numbers are such thatwhen divided by 7. leaves a remainder 3 ineach case
Answer» Answer: FIRST three digit number is 100if 100divided by 7then reminder is 2 so 101 is the first number who when DIVIDED by 7

28.

6. How many three digit numbers are such thatwhen divided by 7. leaves a remainder 3 ineach case

Answer»

Answer:

FIRST three digit number is 100if 100divided by 7then reminder is 2 so 101 is the first number who when DIVIDED by 7

Discussion

29.	Radha and Meera are sisters. The sum of the ages of the siblings and their father is 85years. Radha'sage is (3/4)th of Meera's age and their father is 2 and 1/2 times Meera's age. Find how old is Radha.Immersive Reader
Answer» Given: Radha and Meera are sisters. The sum of the ages of the siblings and their father is 85 years Radha'sage is (3/4)th of Meera's age and their father is 2 and 1/2 times Meera's age To find: Find how old is Radha? Solution: Let's assume, "R" → represents Radha's age "M" → represents Meera's age "F" → represents Father's age We have, Radha'sage is (3/4)th of Meera's age, so the eq. will be: $R = \frac{3}{4} M$ ...... (i) and Their father is 2 and 1/2 times Meera's age, so the eq. will be: $F = 2\frac{1}{2} \times M= \frac{5}{2} M$ ...... (ii) Now, The sum of the ages of all 3 of them is 85 years, so the eq. will be: $R + M + F = 85$ substituting from (i) & (ii), we get $\implies \frac{3M}{4} + R + \frac{5M}{2} = 85$ $\implies \frac{3M + 4M + 10M}{4} = 85$ $\implies \frac{17M }{4} = 85$ $\implies M = \frac{85 \times 4 }{17}$ $\implies M = 20$ Substituting the value of M = 20 in eq. (i), we get $R = \frac{3}{4} \times 20 = 15$ Thus, Radha's age is 15 years old. --------------------------------------------------------------------------------------------------- Also VIEW: Radha is twice as old as Meera. Five years ago her age was three times Meera’s age. Find their PRESENT ages. brainly.in/question/17906597 andy is 2 times YOUNGER than his sister and this father is 25years older than him if the total of their ages is 53 years what is andy's age and his father 's age brainly.in/question/1948518

29.

Radha and Meera are sisters. The sum of the ages of the siblings and their father is 85years. Radha'sage is (3/4)th of Meera's age and their father is 2 and 1/2 times Meera's age. Find how old is Radha.Immersive Reader

Answer»

Given:

Radha and Meera are sisters.

The sum of the ages of the siblings and their father is 85 years

Radha'sage is (3/4)th of Meera's age and their father is 2 and 1/2 times Meera's age

To find:

Find how old is Radha?

Solution:

Let's assume,

"R" → represents Radha's age

"M" → represents Meera's age

"F" → represents Father's age

We have,

Radha'sage is (3/4)th of Meera's age, so the eq. will be:

$R = \frac{3}{4} M$ ...... (i)

and

Their father is 2 and 1/2 times Meera's age, so the eq. will be:

$F = 2\frac{1}{2} \times M= \frac{5}{2} M$ ...... (ii)

Now,

The sum of the ages of all 3 of them is 85 years, so the eq. will be:

$R + M + F = 85$

substituting from (i) & (ii), we get

$\implies \frac{3M}{4} + R + \frac{5M}{2} = 85$

$\implies \frac{3M + 4M + 10M}{4} = 85$

$\implies \frac{17M }{4} = 85$

$\implies M = \frac{85 \times 4 }{17}$

$\implies M = 20$

Substituting the value of M = 20 in eq. (i), we get

$R = \frac{3}{4} \times 20 = 15$

Thus, Radha's age is 15 years old.

---------------------------------------------------------------------------------------------------

Also VIEW:

Radha is twice as old as Meera. Five years ago her age was three times Meera’s age. Find their PRESENT ages.

brainly.in/question/17906597

andy is 2 times YOUNGER than his sister and this father is 25years older than him if the total of their ages is 53 years what is andy's age and his father 's age

brainly.in/question/1948518

Discussion

30.	Pls answer this question..
Answer» ANSWER: (a)......................................

30.

Pls answer this question..

Answer»

ANSWER:

(a)......................................

Discussion

31.	Explain with equation in effect of heating on 1 - lead nitrate2 - sodium nitrate
Answer» Answer: 3bhdy sbdnndmdb bsnndnnncnnxbjch .xbbx538e86dhcjc

31.

Explain with equation in effect of heating on 1 - lead nitrate2 - sodium nitrate

Answer»

Answer:

3bhdy

sbdnndmdb

bsnndnnncnnxbjch

.xbbx538e86dhcjc

Discussion

32.	एक बाग मे आम के 2304 पेड़ है।प्रत्येक पंक्ति में उतने ही पेड़ है, जितनी कि बाग में पंक्तियाँ है। बाग मे कुल कितनी पंक्तियाँ है
Answer» दिया हुआ: एक बाग मे आम के पेड़ का संख्या = 2304 एक बाग मे आम के कुल कितनी पंक्तियाँ है? SOLUTION: प्रश्न के अनुसार: प्रत्येक पंक्ति में पेड़ का संख्या = बाग में पंक्तियाँ का संख्या ∴ एक बाग मे आम के पेड़ का संख्या = $\sqrt{2304}$ = $\sqrt{<klux>2</klux>\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times <klux>3</klux>\times 3}$ = 2 × 2 × 2 × 2 × 3 = 48 इसलिये, बाग मे कुल 48 पंक्तियाँ है।

32.

एक बाग मे आम के 2304 पेड़ है।प्रत्येक पंक्ति में उतने ही पेड़ है, जितनी कि बाग में पंक्तियाँ है। बाग मे कुल कितनी पंक्तियाँ है

Answer»

दिया हुआ:

एक बाग मे आम के पेड़ का संख्या = 2304

एक बाग मे आम के कुल कितनी पंक्तियाँ है?

SOLUTION:

प्रश्न के अनुसार:

प्रत्येक पंक्ति में पेड़ का संख्या = बाग में पंक्तियाँ का संख्या

∴ एक बाग मे आम के पेड़ का संख्या = $\sqrt{2304}$

= $\sqrt{<klux>2</klux>\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times <klux>3</klux>\times 3}$

= 2 × 2 × 2 × 2 × 3

= 48

इसलिये, बाग मे कुल 48 पंक्तियाँ है।

Discussion

33.	Is the following sequence anA•P? If it is an A•P find the common difference 0,-4,-8-12.....
Answer» ANSWER: Yes it is an AP The common DIFFERENCE is -4 Marm as brainliest PLEASE

33.

Is the following sequence anA•P? If it is an A•P find the common difference 0,-4,-8-12.....

Answer»

ANSWER:

Yes it is an AP

The common DIFFERENCE is -4

Marm as brainliest PLEASE

Discussion

34.	In triangle ABC , AB =AC , anlgle BAC =50°,now CB is extended to D , then the external angle at angle DAB isa) 90° b) 70°c) 115°d) 80°
Answer» ANSWER: (c)115° Step-by-step explanation: As AB=AC angle ABC=angle ACB (angles opposite to equal sides are equal) angle BAC=50°(GIVEN) angle ABC + angle BAC + angle ACB=180°(ASP) 2angleABC+50°=180° 2angleABC=130° angle ABC=130°/2 angle ABC=65° Similarly, angle ACB=65° angle ABC+angle DAB=180°(exterior angle property) angle DAB =180-65 angle DAB = 115° answer plz MARK as brainliest

34.

In triangle ABC , AB =AC , anlgle BAC =50°,now CB is extended to D , then the external angle at angle DAB isa) 90° b) 70°c) 115°d) 80°

Answer»

ANSWER:

(c)115°

Step-by-step explanation:

As AB=AC

angle ABC=angle ACB (angles opposite to equal sides are equal)

angle BAC=50°(GIVEN)

angle ABC + angle BAC + angle ACB=180°(ASP)

2angleABC+50°=180°

2angleABC=130°

angle ABC=130°/2

angle ABC=65°

Similarly, angle ACB=65°

angle ABC+angle DAB=180°(exterior angle property)

angle DAB =180-65

angle DAB = 115°

answer

plz MARK as brainliest

Discussion

35.	Amit wanted to purchase corn flour if 3 1/2 (mixed number) kg of corn flour cost rupees 50 analyse and find out how much ham it has to pay for 1 kg of corn flour
Answer» ANSWER: RS 33.3 Step-by-step explanation: Cost of 3 1/2 kg flour= Rs 50 So cost of 1 kg of CORN flour= 50/1.5 or 50*2/3 .... here I took the reciprocal = 100/3 = Rs 33.3 Please mark me as brainliest...

35.

Amit wanted to purchase corn flour if 3 1/2 (mixed number) kg of corn flour cost rupees 50 analyse and find out how much ham it has to pay for 1 kg of corn flour

Answer»

ANSWER:

RS 33.3

Step-by-step explanation:

Cost of 3 1/2 kg flour= Rs 50

So cost of 1 kg of CORN flour= 50/1.5 or 50*2/3 .... here I took the reciprocal

= 100/3 = Rs 33.3

Please mark me as brainliest...

Discussion

36.	Find only rational number between 7/2 and 11/3
Answer» Answer: 43/12 Step-by-step EXPLANATION:

36.

Find only rational number between 7/2 and 11/3

Answer»

Answer:

43/12

Step-by-step EXPLANATION:

Discussion

37.	Square root of (23476 - 4545)
Answer» ANSWER: The ANS to this QUE is 170.09

37.

Square root of (23476 - 4545)

Answer»

ANSWER:

The ANS to this QUE is 170.09

Discussion

38.	Express the following in deciaml form 7/64 =
Answer» ANSWER: DECIMAL FORM of 7/64 = 0.109

38.

Express the following in deciaml form 7/64 =

Answer»

ANSWER:

DECIMAL FORM of 7/64 = 0.109

Discussion

39.	a man driving his bike at 24kmph reaches his office 5 mins late. had he driven 25% faster on an average he would hav reached 4 mins earlier than the scheduled time how far is his office ?
Answer» Step-by-step EXPLANAT

39.

a man driving his bike at 24kmph reaches his office 5 mins late. had he driven 25% faster on an average he would hav reached 4 mins earlier than the scheduled time how far is his office ?

Answer»

Step-by-step EXPLANAT

Discussion

40.	B. Express the following in the form of p/q. 36/100
Answer» Answer: Step-by-step explanation: Answer 4.0/5 315 Deleted account hiii!!! here's Ur answer... given :- 0.36363636... let x be = 0.36363636... -------(1) multiplying both sides by 100 as 2 numbers are repeating. 100 × x = 100 × 0.36363636... 100x = 36.36363636... -------(2) subtract equation (1) from equation (2) 100x - x = 36.36363636... - 0.36363636... 99X = 36 x = 36/99 x = 12/33 x = 4/11 hence, p/q form of 0.36363636... is 4/11 marka s BRAINLIEST

40.

B. Express the following in the form of p/q. 36/100

Answer»

Answer:

Step-by-step explanation:

Answer

4.0/5

315

Deleted account

hiii!!!

here's Ur answer...

given :- 0.36363636...

let x be = 0.36363636... -------(1)

multiplying both sides by 100 as 2 numbers are repeating.

100 × x = 100 × 0.36363636...

100x = 36.36363636... -------(2)

subtract equation (1) from equation (2)

100x - x = 36.36363636... - 0.36363636...

99X = 36

x = 36/99

x = 12/33

x = 4/11

hence, p/q form of 0.36363636... is 4/11

marka s BRAINLIEST

Discussion

41.	3x+2yanswer this please
Answer» Answer: 3x+2y Step-by-step EXPLANATION:

41.

3x+2yanswer this please

Answer»

Answer:

3x+2y

Step-by-step EXPLANATION:

Discussion

42.	5678 is divisible by 2 or not if it is divisible give reason
Answer» ANSWER: YES it's is divisible because the LAST digit of the number is even. Please mark as BRAINLIEST

42.

5678 is divisible by 2 or not if it is divisible give reason

Answer»

ANSWER:

YES it's is divisible because the LAST digit of the number is even.

Please mark as BRAINLIEST

Discussion

43.	Radha and Meera are sisters. The sum of the ages of the siblings and their father is 85years. Radha'sage is (3/4)th of Meera's age and their father is 2 and 1/2 times Meera's age. Find how old is Radha
Answer» ANSWER: Step-by-step EXPLANATION: RADHAS AGE is 34

43.

Radha and Meera are sisters. The sum of the ages of the siblings and their father is 85years. Radha'sage is (3/4)th of Meera's age and their father is 2 and 1/2 times Meera's age. Find how old is Radha

Answer»

ANSWER:

Step-by-step EXPLANATION:

RADHAS AGE is 34

Discussion

44.	Know arlali which number isnumber is knowthemultiplicative idensity for integra
Answer» Step-by-step explanation: multiplication IDENTITY for INTEGERS is 1.... if you add any real number with 1 you'll GET the just next the real number just after the first real.number by which you have ADDED it... please MARK as brainliest and follow me.....please

44.

Know arlali which number isnumber is knowthemultiplicative idensity for integra

Answer»

Step-by-step explanation:

multiplication IDENTITY for INTEGERS is 1....

if you add any real number with 1 you'll GET the just next the real number just after the first real.number by which you have ADDED it...

please MARK as brainliest and follow me.....please

Discussion

45.	The octal number 326.4326.4 is equivalent to
Answer» ANSWER: I REALLY don't KNOW this concept Step-by-step EXPLANATION: SORRY

45.

The octal number 326.4326.4 is equivalent to

Answer»

ANSWER:

I REALLY don't KNOW this concept

Step-by-step EXPLANATION:

SORRY

Discussion

46.	Algebraic form of an arithmetic sequence is 6n+3
Answer» Step-by-step EXPLANATION: this will HELP you like me

46.

Algebraic form of an arithmetic sequence is 6n+3

Answer»

Step-by-step EXPLANATION:

this will HELP you

like me

Discussion

47.	If + = + = ℎ ℎ Cos ( + ) = 2−2/ 2+2
Answer» Step-by-step explanation: ANSWER (a) Given equation sinθ=1/2 sinθ=sin(π/6) If sinx=siny then general formula is X=nπ+(−1) N y;=0,±2,±3......... using this we get , θ=nπ+(−1) n (π/6);n=0,±1,±2,±3.......... θ=nπ+(−1) n (π/6);n=0,±1,±2,±3,....... (b) Given equation ∴cos(3θ/2)=0 If cosx=0, then x=(2n+1)π/2 where n=0,±1,±2...... using this we get , 2 3θ =(2n+1) 2 π , where n=0,±1,±2,.... θ=(2n+1)π/3wheren=0,±1,±2,... (C) tan(30/4)=0 If tanθ=tanαthenθ=nπ+α,wheren=0,±1,±2,.... using this we, get 3θ/4=nπwheren=0,±1,±2,........ θ=4nπ/3wheren=0,±1,±2,......... (d) 3 sec2θ=2 cos2θ= 3 /2⇒cos2θ=cosπ/6 using formula if cosx=cosythenx=2nπ±ywheren=0,±1,±2...... We get 2θ=2nπ±π/6wheren=0,±1,±2....... θ=nπ±π/12wheren=0,±1,±2,........ (e) cos(θ/2)=−1 sin(θ/2)=−1⇒sinθ/2=sin3π/2 θ/2=nπ+(−1) n 3π/2wheren=0,±1,±2....... θ=2nπ+(−1)3πwheren=0,±1,±2..... my friend hope it will help U

47.

If + = + = ℎ ℎ Cos ( + ) = 2−2/ 2+2

Answer»

Step-by-step explanation:

ANSWER

(a) Given equation

sinθ=1/2

sinθ=sin(π/6)

If sinx=siny

then general formula is X=nπ+(−1)

N

y;=0,±2,±3.........

using this we get , θ=nπ+(−1)

n

(π/6);n=0,±1,±2,±3..........

θ=nπ+(−1)

n

(π/6);n=0,±1,±2,±3,.......

(b) Given equation ∴cos(3θ/2)=0

If cosx=0, then x=(2n+1)π/2 where n=0,±1,±2......

using this we get ,

2

3θ

=(2n+1)

2

π

, where n=0,±1,±2,....

θ=(2n+1)π/3wheren=0,±1,±2,...

(C) tan(30/4)=0

If tanθ=tanαthenθ=nπ+α,wheren=0,±1,±2,....

using this we, get 3θ/4=nπwheren=0,±1,±2,........

θ=4nπ/3wheren=0,±1,±2,.........

(d)

3

sec2θ=2

cos2θ=

3

/2⇒cos2θ=cosπ/6

using formula if cosx=cosythenx=2nπ±ywheren=0,±1,±2......

We get 2θ=2nπ±π/6wheren=0,±1,±2.......

θ=nπ±π/12wheren=0,±1,±2,........

(e) cos(θ/2)=−1

sin(θ/2)=−1⇒sinθ/2=sin3π/2

θ/2=nπ+(−1)

n

3π/2wheren=0,±1,±2.......

θ=2nπ+(−1)3πwheren=0,±1,±2.....

my friend

hope it will help U

Discussion

48.	Pls Answer Q If one side of a cube is 15cm find its volume and surface area.
Answer» ANSWER: VOLUME= side^3 volume =15^3 =3375cm^3 Step-by-step EXPLANATION: SURFACE AREA =6×side^2 Surface area = 6×15^2 =1350cm^2

48.

Pls Answer Q If one side of a cube is 15cm find its volume and surface area.

Answer»

ANSWER:

VOLUME= side^3

volume =15^3

=3375cm^3

Step-by-step EXPLANATION:

SURFACE AREA =6×side^2

Surface area = 6×15^2

=1350cm^2

Discussion

49.	The perimeter of a parallelogram is 80cm one side is 10cm more than the other side what is the length of the side?
Answer» SIDES are X and x+10 perimeter of PARALLELOGRAM= 2×(L +B ) 80cm=2(x+x+10) 80cm=4x+20 (80-20)÷4=x x=15 x+10=25

49.

The perimeter of a parallelogram is 80cm one side is 10cm more than the other side what is the length of the side?

Answer»

SIDES are X and x+10

perimeter of PARALLELOGRAM= 2×(L +B )

80cm=2(x+x+10)

80cm=4x+20

(80-20)÷4=x

x=15

x+10=25

Discussion

50.	A well of diameter 8 meters has been dug to the depth of 21m. the volume of the earth dug out is
Answer» ANSWER: Step-by-step explanation: The volume of the earth dug is 704 m³. Step-by-step explanation: Given : Diameter = 8 m Depth = 14 m To FIND : The Volume of earth dug out Solution : Well is a CYLINDER, the volume is cylinder will be the volume of the earth dug out. The depth is the height. ★ Volume = πr²h Height = 14 m Radius = 8/2 = 4 m ⇒ 22/7 × 4 × 4 × 14 ⇒ 22/7 × 16 × 14 ⇒ 22/7 × 224 ⇒ 4928/7 ⇒ 704 Volume = 704 m³ Therefore, the volume of the earth dug is 704 m

50.

A well of diameter 8 meters has been dug to the depth of 21m. the volume of the earth dug out is

Answer»

ANSWER:

Step-by-step explanation:

The volume of the earth dug is 704 m³.

Step-by-step explanation:

Given :

Diameter = 8 m

Depth = 14 m

To FIND :

The Volume of earth dug out

Solution :

Well is a CYLINDER, the volume is cylinder will be the volume of the earth dug out. The depth is the height.

★ Volume = πr²h

Height = 14 m

Radius = 8/2 = 4 m

⇒ 22/7 × 4 × 4 × 14

⇒ 22/7 × 16 × 14

⇒ 22/7 × 224

⇒ 4928/7

⇒ 704

Volume = 704 m³

Therefore, the volume of the earth dug is 704 m

Discussion

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