Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

7. Can the number 6", n being a natural number, end with the digit 5? Give reasons.

Answer»

No, beacuse,6ⁿ = 2ⁿ × 3ⁿ

For a number to end with 5 it must have 5 as a factor.

Here 6ⁿ does not have 5 as factor

2.

19 In a class of 100 students, 55 students read History, 41 students read Philosophy and 25 studersread both the subjects. Find the number of students who study neither the subjects.(a) 170(c) 720(b) 450(d) 270

Answer»

total students=100read history=55read philosophy=41read both=25so students who neither read=100-55-41+25=29

3.

Multiplication Theorem of ProboblitiM32.346. In a hostel, 60% of the students read Hindi news paper, 40% read Englichpaper and 20% read both Hindi and English news papers. A student is serandom.A student is selected a(i) Find the probability that she reads neither Hindi nor English news

Answer»
4.

S$1 CAD is currently worth 75¢ USD. For $240 Canadian, how much American money would youreceive?

Answer»
5.

fustafa and Prakash take respectively 6 hours, 10 hours and 15 hours tomanufacturing measure scale of steel. If allake 360 measure scale in a companythe three do this work together, they get R 720 as remuneration. Hwill each get ?do thi

Answer»

Total time taken to make 360 measure scales- 3 hourDipesh will make 60/hr, Total -180Mustafa - 36/ hr,Total-108Prakash - 24/ hr,Total-72Each scale's remuneration - 2/piece

Dipesh-360,mustafa-216, prakash - 144

6.

Ae 3TH 22गा,दिनर १० दिन में- मी ती

Answer»

10 men built one house in 20 days

Then,One man built same house in days = 20*10 = 200

Therefore, 4 men will built same house in days = 200/4 = 50

The 4 men made house into 50 days

a correct answer is 50 days

50 days 4 right answer

7.

bree cugles Fd t area of the shaded resion

Answer»
8.

6. The total remuneration paidremuneration paid to labourers, employed to harvest soyabeen is inWirbet variation with the number of labourers. If remuneration of 4 labourersis 1000, find the remuneration of 17 labourers.

Answer»

remuneration for 4 labors for

remuneration for 4 is the best answer🎯

If Remuneration of 4 labour = 1000 rupees Remuneration of 1 labour = 1000/4 =250 RsRemuneration of 17 labour = 250×17=4250 Rs

9.

26. Three cylinders each of height 16 cmandradius of base 4 cm are placed on a planeso that each cylinder touches the othertwo. What is the volume of the regionenclosed between the three cylinders?(A) 98(43-) cm(A)(B)(C)(D)98(4V3-π) cm 398(2-3-m)cm?98( /3-n)cm128(2V3-x) cm 3

Answer»

Draw the cross section of the region. The cylinders will be represented by circles.Join the centers of the circles to form an equilateral triangle with a side of length 2r = 8cm

Area of an equilateral triangle = (√3/4)a²a = 8Area = 16√3 cm²

There are three equal sectors included in this area, each with an angle of 60°Area of the three sectors = 3×(60/360)×π×4²Area of the sectors = 8π cm²

Area between the circles = (16√3 - 8π)cm²= 8(2√3 - π)cm²

Volume between the cylinders = Area × height= 8(2√3 - π)cm² × 16= 128(2√3 - π)cm²

10.

98+98

Answer»

Sum of 98 +98 = 196

sum of 98+98=196 answers

11.

98231516L )198

Answer»

5:30

12.

Q.1 chope the Coca*) XcV11 .98D 98© 1080999) How many million3) 100 ble ©• The predecessor alooo 1 loot C

Answer»
13.

आल एक E RERR o B s k3 oyLol Dl IR Jrang) रू 98 98 ्रि प्प० 9 था प्9 8 दाह s सध o LEp 7z

Answer»
14.

15 added to the square of a number is 6 less than the square of itssuccessor. Find the number7.

Answer»

let the number be X.According to question, X ² +15 = (X +1)² -6

=>X ² +15 = X²+2X+1-6

=> 2X = 20=> X = 10

Hence, the number is 10=

15.

6. One number is 7 more than another and its square is 77 more than the square of the smaller numberWhat are the numbers?

Answer»

two numbers are a-7 and aso a^2=(a-7)^2+77a^2=a^2-14a+49+7714a=126so a=126/14=9

16.

x ^ { 2 } - m ^ { 2 } - 9 n ^ { 2 } + 6 m n

Answer»

x²-m²-9n²+6mn

= x²-(m²+9n²-6mn)= x²-(m²+(3n)²-2(m)(3n))= x²-(m+3n)²= (x-m-3n)(x+m+3n)

17.

98+2=

Answer»

When we add 98 + 2 we'll get the answer as 100

98+2 =100 is the right answer please mark me the best answer

98+2=100 is the answer

98+2=100 is the right answer

98+2=100this is the correct answer

98+2=100your answer is 100.

100 is the answer of the following

98+2=80 is the correct answer for you

98+2=100 is the correct answer for you

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💯 is right answer of this question am I right

when we add 98 +2 well get the answer 100

92 is add to 2 = 100

Right answer is 100.

98 is added to 2=100

98 +2 =100 is the answer of sum

98+2=100 is the right answer.

98+2=100 is the best answer

100 is the right answer

98+2=100 is tha right answer

18.

How many natural numbers are there from 2 to 102 What room of them a

Answer»

there has 6 natural number 22 and 10 very easy question

19.

92+98

Answer»

190 is the correct answer

190 is the right ans

92+98=190 is correct answer.

92+98 =190 is the right answer

98+92=190 is the correct answer

190 is the right one

190 is the correct answer

190 is the correct answer

190 is the correct answer

190 is the correct answer

190 is the right answer

190 is right answer please like my answer

190 is the right answer

190 is the correct answer

190 is the correct answer

190 is the correct answer

190 is correct answer

190 is the correct answer

190 is right answer hoga

190 is the correct answer of this question

92+98=190 is right answer

92+98 = 190 is the right answer according to your question

20.

e of 35 and square of 36.How many natural numbers lie between square of 35 anA

Answer»

natural numbers lie between square of 35 and square of 36=(36+35)-1=71-1=70

There are 2n non-square numbers between n and (n+1)…Therefore,there are 2×35=70 non square numbers between 35 and 36

21.

98-54

Answer»

The difference is 44

thanks

22.

= 36,en kind the value of(x--).

Answer»

( x+1/x)^2=x^2+1/x^2-2; ; (x-1/x)^2+2=36; x-1/x=34

x^2+1/x2=36(x-1/x)^2+2x×1/x=36(x-1/x)^2=36-2(x-1/x)=√34

√ 34 is the correct answer of the given question

√34 is correct answer of question

23.

.Dinesh Sold His motorcycle to Naveen at a loss of 28% Naveen spend 1680 rupees on its repairs and sold motorcycle to Saran for rupees 35910 making a profit of 12.5% find cost of motorcycle for dinesh

Answer»

Let CP of dinesh motorcyvle = Rs x

SP of dinesh motorcycle = (72/100) x = 0.72 x [There is a loss of 28%]

CP of saran motorcycle including the cost of repairs = (0.72x + 1680)

SP of saran motor = Rs 35910

Profit Percentage = 12.5%

[(35910) - (0.72x + 1680)] x 100 / (0.72x + 1680) = 12.5

⇒ (3423 - 0.72x) / (0.72x + 1680) = (125 / 100)

⇒ 3423000 - 72x = 9x + 21000

⇒ 3423000 - 21000 = 9x + 72x

⇒ 3402000 = 81x

⇒ x = 42000

24.

A man reared cows and buffaloes. Thenumber of buffaloes was 7 more than onethird of the number of cows. What was thetotal number of animals, if the number ofbuffaloes was 21?

Answer»

Very thankful to you

25.

1. A man reared cows and buffaloes. Thenumber of buffaloes was 7 more than onethird of the number of cows. What was thetotal number of animals, if the number ofbuffaloes was 21?

Answer»

no. of buffaloes = 211/3x + 7=211/3x=21-71/3x=14x=14×3x= 42no. of cows is 42total no.of animals=42+21=63

26.

90.A man had some hens and cows. If the numberof heads be 48 and the number of feet equals140, then the number of hens is:

Answer»
27.

Dinesh wants to exchange hisplot with a square plot of side 84 mlength of the rectangular plor is 144Find the breadth of the rectangurectanarploe.

Answer»
28.

10, Given, universal set = {x e Z :-6 < x6),N = {n : n is a non-negative number) andP [x:x is a non-positive number). Find:(ii) P

Answer»

universal set, U(let)={-5,-4,-3,-2,-1,0,1,2,3,4,5,6}N={0,1,2,3,4,5,6}P={-5,-4,-3,-2,-1}We can see that P + N= Ui) N'=U- N=Pii)P'=U-P=N

29.

If n is any natural number, then by which number 6 n square - 5 n square is always divisible.

Answer»

If n is a natural number then 6 to the power n - 5 to the power n will end with 1Example-(1) 6 to the power 1 - 5 to the power 1 ends with 1(2) 6 to the power 2 - 5 to the power 2 =36-25 =11 which ends with1.

30.

For a number greater than 10 to be a primenumber, what may be the possible digits in one'splace

Answer»

the only possible digit are odd digits.. such as 1,3,5,7 and 9.

31.

. Find a G.P. for which the sum of first twoterms is -4 and the fifth term is 4 times thethird term.

Answer»

let the G.P be. a ,ar, ar² , ar³ , ar⁴

now , sum of first two terms is a+ar = a(1+r) = -4 ....(1)

and ar⁴ = 4ar² => r² = 4 ,... so, r = ±2

now putting both the values of r in (1)

we get. a(1+2) = -4 so, a = -4/3

or a(1-2) = -4 , a = 4

so, G.P is 4, -8,16,-32,....

or -4/3 , -8/3 , -16/3 , -32/3 ,-64/3

32.

4) A man reared cows and buffaloes. The number of buffaloes was 7 more than onethird of the number of cows. What was the total number of animals, if the number ofbuffaloes was 21?

Answer»
33.

32. The nth term of an A.P. is given by (-4n + 15). Find thesumoffirst20termsofthisА.Р.[CBSE 2013]

Answer»
34.

4 In a farm house, there are 80 cows and 30 buffaloes. What is the ratio of the cows to the buffalo

Answer»

ratio of cow to buffaloes = no. of cows / no. of buffaloes= 80/30=8:3

35.

-r-The nth term of an A.P is given by (-4n + 15).Find the sum of first 20 terms of this A.P.

Answer»
36.

A.P.32. The nth term of an A.P. is given by (-4n + 15). Find the sum of first 20 terms of thisCBSE 2013]ratio 1 :5, find theA.P

Answer»
37.

4n²+4n - 288

Answer»
38.

(3) AB = 5 cm, BC-4 cm and AC-6 cm. State, with reason whether it is--Jpossible to draw AABC or not.

Answer»

Yes its possible to draw bcoz 5+4 > 6and 4+6> 5, 6+5>4

When sum of 2 sides is more than third side, we can draw the triangle

39.

Find an anti-derivative (or integral) of thefollowing functions by the method ofinspectionsin 2x

Answer»

-cos2x/2 is the right answer

-cos 2x/2is the correct answer

40.

4.Which one of the following is not a quadratic equation ?1

Answer»
41.

4. In the given figure, find the area of rhombus ABCD,'İf AO=4cm and OD=5 cm.

Answer»
42.

4/N 6104.vethe following questions (Any two):4First term and common difference of an A.P. are 12 andrespectively. If tn 96, find n.If- 22, then find the value of m. s 32:Solve the following quadratic equation

Answer»
43.

TULLY. What is the answer?10. A herd of cows gives 4 litres of milk each day. But each cow gives one-third oftotal milk each day. They give 24 litres milk in six days. How many cows arethere in the herd?

Answer»

A herd of cows gives 4 liters of milk each day.

Each cow gives one-third of total milk each day = 1/3 of 4

Therefore, each cow gives 4/3 of milk each day.

Total no. of cows = 4 ÷ 4/3

= 3

Therefore there are 3 cows in the herd.

44.

m) 352. Expressas a rational number with denominator 7.98

Answer»
45.

(i) given a,, = 37, d=3, find a and S.

Answer»

Thank you very much I was very confused because now I am 9 to 10 once again thanks

46.

7. Calculate the value of x in the given figure.7x3710xD

Answer»
47.

21. Find the number of three-digit natural numbers which are divisible b2. The nth term of an AP is given by (-4n 15). Find the sum of first 20 terms of this A.P. (-540)

Answer»

irst three digit no. which is divisible by 11 is 110

So,

a(first term)=110

d(common difference)=11

an(last term)=990

an=a+(n-1)d990=110+(n-1)11

990-110=(n-1)11

880/11=(n-1)

80=n-1

n=81

So the no. of three digits divisible by 11 are 81

48.

14. The Fibonacci sequence is defined by1 = a, = a, and a = 0, -, + a2, n > 2.Find+, for n = 1, 2, 3, 4, 5an

Answer»
49.

14. The Fibonacci sequence is defined by1 = a, = a, and a, = 0 -1 + 2n-2 n> 2.FindAntian-, for n=1, 2, 3, 4, 5forn

Answer»
50.

B-4, 6, 10, 14]D(0-A) n (U-B) = ?(iv) (A-BJU (B-A) = ?

Answer»

1= 12,162= 4,6,10,12,14,163= 2,8 4= 2,4,8,14