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.

Rationalise the denominator of 1/ root6 + 1/root5

Answer»

SOLUTION:

1/√6+1√5

RationalizingFactor:-√6-1√5

=>1/√6+1√5×√6-1√5/√6-1√5

=>√6-1√5/(√6)²-(1√5)²

=>√6-1√5/6-5

=>√6-1√5/1

=>√6-1√5

2.

A dice is thrown 65 times and the number 2 is obtained 13 times .Find the probability of getting the number 2.​

Answer»

Answer:

1/5 or 0.2

Step-by-step explanation:

13/65

=1/5

or

=0.2

3.

3. Simplify the following.a,) 5/9+9/8​

Answer»

121/72 is the CORRECT ANSWER.....

4.

Q.5.Find the factors of :6y²-5 y - 6​

Answer»

ANSWER:

by MIDDLE SEPARATION 9-4 is the CORRECT FACTOR

5.

Express (1+i)^3/(4+3i) in the form of x + iy.​

Answer»

Step-by-step explanation:

ANSWER

(3+4I)

(2−3i)

Multiplying both numerator and denominator by the COMPLEX CONJUGATE of the denominator

Therefore,

(3+4i)

(2−3i)

=

3+4i

2−3i

×

3−4i

3−4i

=

(3)

2

−(4i)

2

(2−3i)(3−4i)

=

9+16

(6+12i

2

)−(9+8)i

=

25

−6−17i

=

25

−6

+

25

−17

i

Here, A=

25

−6

and B=

25

−17

6.

Area of the circle inscribed in a square of side 6cm will be?​

Answer»

Answer:

28.27cm

Diameter of CIRCLE= 6cm

Radius= D/2=3cm

area of circle= πr^2

π×3×3 cm

9πcm

28.27cm

7.

A car travelling at 36km n-1 speeds up to 72km n-1 in 5 second. Find it's acceleration​

Answer»

SORRY YARR don't KNOW the ANSWER sorry

8.

Iska answer BTA do please 5han​

Answer»

ANSWER:

PLEASE FOLLOW me please please

9.

Find the Simple Interest on Rs. 48,000 for one and a half year at 8% per annum when compounded half yearly.​

Answer»

ANSWER:

Step-by-step explanation:

I= PX RX T/ 100

I= 48000 X 8 X 18/ 100

I= 69120

10.

The ratio of surface area of a sphere and curved surface area of a hemisphere is 9:2. Then find the ratio of their volumes​

Answer»

Step-by-step explanation:

Let the RADIUS of sphere be r₁

And radius of hemisphere be r₂

The SURFACE AREA of a sphere = 4πr₁²

The CURVED surface area of hemisphere = 2π(r₂)²

The ratio of them is 9:2

\rm \dashrightarrow \dfrac{4\pi { r_{1} }^{2} }{2\pi { r_{2} }^{2} }  =  \dfrac{9}{2}

\rm \dashrightarrow \dfrac{2 { r_{1} }^{2} }{ { r_{2} }^{2} }  =  \dfrac{9}{2}

\rm \dashrightarrow  \bigg(\dfrac{ { r_{1} } }{ { r_{2} } }  \bigg) ^{2}  =  \dfrac{9}{4}

\rm \dashrightarrow  \dfrac{  r_{1}  }{  r_{2} }  =   \sqrt{ \dfrac{9}{4}}

\rm \dashrightarrow  \dfrac{  r_{1}  }{  r_{2} }  =   \dfrac{3}{2}

As we know that:-

Volume of sphere = \rm\dfrac{4}{3}\pi { r_{1}}^{3}

Volume of hemisphere =\dfrac{2}{3}\pi { r_{2}}^{3}

\rm \dashrightarrow     \dfrac{  \:  \:  \:  \: \dfrac{4}{3}\pi { r_{1}}^{3}  \:  \:  \:  \:  }{  \dfrac{2}{3}\pi { r_{2}}^{3}}

\rm \dashrightarrow     2 \times \bigg( \dfrac{   { r_{1}} }{ r_{2} }  \bigg)^{3}

\rm \dashrightarrow     2 \times \bigg( \dfrac{ 3 }{ 2 }  \bigg)^{3}

\rm \dashrightarrow     2 \times  \dfrac{27}{8}  =  \dfrac{27}{4}

\underline{ \boxed{ \therefore  \rm The \: ratio \: of \: the \: volumes \: of \: sphere   =  27 : 4}}

11.

(6 72 - 8 X 12 - 100​

Answer»

ANSWER:

-124

hope it will HELP you MARK me as BRAINLIST

12.

A car is accelerate 5m. per sec to 10 m per sec in 5 sec . find accleration​

Answer»

ACCELERATION = (10-5)/5 = 1 m PER second SQUARE

13.

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bagwhat is the probability that the ball drawn is (í) red? (ii) not red?​

Answer»

Answer:

Total number of BALLS in the bag = 8

No. of red balls = 3

No. of BLACK balls = 5

(i) We know that, PROBABILITY P(E) =

(Total no.of possible outcomes) /

(No.of FAVORABLE outcomes)

= 3/8

(ii) We know that, Probability P(E) =

(Total no.of possible outcomes) /

(No.of favorable outcomes)

=5/8

or [for (ii) answer only]

p(not E) =1- p(E)

p(not E) = 1- 3/8

p(not E) = 5/8

14.

G) Draw any two English alphabets having an only a vertical line of you,​

Answer»

Answer:

I and H

Step-by-step explanation:

hope this HELPS you PLEASE MARK me as BRAINLIEST and follow me I will follow u

15.

man enters a room with no light 5 different pair of socks are kept in the room the man picks 6 socks what is the probability that he picks the same color please answer fast ​

Answer»

Answer:

man ENTERS a room with no light 5 different pair of socks are kept in the room the man PICKS 6 socks what is the PROBABILITY that he picks the same color please answer fast

16.

Exercise 15Simplify:1. 12+9=32. 16x8=4432 = 8 + 4 x 6-2​

Answer»

Step-by-step explanation:

12-9 = 3

ok it's the ANSWER

17.

What are the factor of x²+18x +81​

Answer»

ANSWER:

factors are: X=(-9) x=(-9)

Step-by-step explanation:

x²+18x+81

=> x²+9x+9x+81

=> x(x+9)+9(x+9)

=> (x+9)(x+9)

=> (x+9)²

factors are: x=(-9) and x=(-9)

HOPE IT HELPS:)

THANKYOU

18.

Area of rectangle =Perimeter of rectangle​

Answer»

ANSWER:

Area of a rectangle = LENGTH × Breadth

Perimeter of a rectangle = 2 ( Length + Breadth )

19.

The height of a cone is 15 cm. If its volume is 1570 cm3, find the radius of the base. (use π = 3.14)​

Answer»

Step-by-step EXPLANATION:

so RADIUS of the CONE is 10 CM

20.

IF 0.0. then the point (x, y) lies in which quadrant ?​

Answer»

ANSWER:

it LIES at the ORIGIN (O)

Step-by-step EXPLANATION:

21.

05лютипси пъucu.16. The shadow of a vertical tower on a level ground increases by 10 m when the alituof the sun changes from 45° to 30°. Find the height of the tower, correct to two decinaplaces.(2011​

Answer»

don't KNOW

........

MARK me as a brainlist

22.

A coin is tossed 500 times and we get head : 136 times and tail : 55 times.what is the probability of getting tail.​

Answer»

Answer:

136+55 is not= 500

Step-by-step EXPLANATION:

23.

Question 2. Write the additive inverse of each of the following:a. 1b. -IN7d. 25Question 3. Evaluate:​

Answer»

ANSWER:

a) -1

b) +

c) -7

d) -2

e) -5..

Important note : additive INVERSE is the negative of the given NUMBER...

hope this help!!!

PLS mark me as brainliest..

24.

Evaluate 5m² (8-m) where m=1,​

Answer»

\huge \orange{ \overbrace{ \red{\underbrace \color{blue} {\underbrace \color{black}{\colorbox{lime}{ {\red \: {☘Answer ☘ }}}}}}}}

QUESTION:

EVALUATE 5m² (8-m) where m=1,

ANSWER:

➜ 5m² (8-m)

➜ 5(1)²(8-1)

➜ 5 (7)

➜ 35

25.

If 2x and y vary inversely and x = 10 when y = 25 , find xbox when y = 10​

Answer»

Step-by-step explanation:

2x∝1/y

constant = 2xy

if x = 10, y = 25

constant = 2*10*25 = 500

if y = 10

constant = 2xy

500 = 2*x*10

x = 25

Hope it helps

Mark it as the BRAINLIEST

26.

Solve (i) 2h + 7 = 13 (ii) 3m - 2 = 46 (iii) 4 = 5 (n-2)​

Answer»

Answer:

2h+7=13

2h=5

h=5/2

3m-2=46

3m=48

m=48/3

m=16

4=5n-10

14=5n

n=14/5

27.

VP=2l+2wConciseMATHEMATICS​

Answer»

ASK your QUESTION PROPERLY

28.

Use the sign of or = -131 + 80 + 50 ( ) -3 X 5 + 8​

Answer»

ANSWER:

> is \: the \: correct \: sign

Step-by-step EXPLANATION:

i HOPE this HELPS you

29.

Solutionhave:100 - 56 = 7+ 15 x 2 = 100 - 8 + 15 x 2= 100 - 8 + 30simplified)[x simplified]ed= 100 + 30 - 8= 130- 8= 122.[+ simplified)[-simplified)1941Exercise 15Simplify:1. 12 +9:32. 16 x 8:43. 23 -8x7​

Answer»

Answer:

1.O=BR-Br - Br-o

2.o - Br - Br-Br =0

3.O=Br-Br

4.O=Br-Br-Br=0

30.

A bus has 8 rows of seats. each row has equal number of seat. if 48 children can sit in the bus, how many seats are there in each row​

Answer»

Answer:

There are total 6 SEATS in a row because of we divide 48 to 8 we GET 6

31.

The sum of zeros of the polynomial x^2-5x+6 is:​

Answer»

ANSWER:

I am TAKING FREE POINTS

32.

on a sum of money, the compound interest calculated yearly is rs 2100 for the second year and for the third year it is rs.2205. calculate the rate of interest and the sum of money​

Answer»

Answer:

C.I. for the third year = Rs. 1,452.

C.I. for the second year = Rs. 1,320

∴ S.I on Rs. 1,320 for one year = Rs. 1,452− Rs. 1,320= Rs. 132.

Rate of INTEREST =

1,320

132×100

=10%.

Let the ORIGINAL money be Rs. P.

Amount after 2 year − amount after one year =C.I. for second year.

P(1+

100

10

)

2

−P(1+

100

10

)=1,320

P[(

100

110

)

2

−

100

110

]=1,320

⇒P[(

10

11

)

2

−

10

11

]=1,320⇒P(

100

121

−

10

11

)= Rs. 1,320

⇒P×

100

11

=Rs.1,320⇒P=

11

1,320×100

= Rs. 12,000

∴ Rate of interest =10%

and Original sum of money = Rs. 12,000

33.

This is maths question​

Answer»

➤ ANSWER :-

\dashrightarrow \sf( {4}^{0}  \times  {3}^{0} ) +  {7}^{0}

\dashrightarrow \sf(1 \times 1) + 1

\dashrightarrow \sf(1) + 1

\dashrightarrow \sf2

\Huge\thereforeThe answer is 2.

34.

A car covers a distance of 14.4 km in 1 litre of petrol. Whatdistance will it cover with 8 litres of petrol?Select one:A. 14.4 kmB. 115.2 kmC. 207.36 kmD. 64 km​

Answer»

Answer:

answer is B

Step-by-step EXPLANATION:

simple if 14.4km in 1 liter

then,

14.4km × 8

= 115.5 KM

35.

Answer this please solve this problem​

Answer»

Answer:

1. 160RS.

2. 180rs.

3. 180/160= 9/8= 9:8.Ans.

4. CIRCULATORY MOTION.

36.

A.b. 0d. none of theseQ6. (a) Is it possible to have a regular polygon with measure of each exterior angle as 220.(b) Can it be an interior angle of a regular polygon? Why?Q7. If the angles of a pentagon are in the ratio 7:8:11:13:15, find the angles.Q8. The value of a property decreases every year at the rate of 5%. If its present price is Rs. 411540what was its value three years ago?09. In what time will Rs.15625 amount to Rs. 17576 at 4% per annum compound interest?Q10. Find the difference between the simple interest and the compound interest on Rs. 2500. for 2years at 4% per annum, compound interest being reckoned semi-annually.Q11. Activity : Draw quadrilateral family on a A4 size sheets,SUBJECT - SCIENCEICQ1. If angle of incidence is 15° then what is the angle of reflection?b) 20°c) 30°d)10a) 15°2. Which organelle is called control centre of the cell?cl mitochondriad) golgiap​

Answer»

ANSWER:

d) NONE of this is the answer

37.

(d) 4857(a) 6718(b) 5042(c) 5626701(f) 983745 (g) 3568367(h) 37456788 (1) 191877869Find the least number of 4-digits which is a perfect square.Find the greatest number of digits which is a perfect square​

Answer»

ANSWER:

OPTION d is the CORRECT answer

38.

Sum number 26. Don't spam.

Answer»

Step-by-step EXPLANATION:

THEREFORE

\frac{\cot( \alpha )  +  \csc( \alpha ) - 1 }{ \cot( \alpha ) -  \csc( \alpha ) + 1  }  =  \frac{1 +  \cos( \alpha ) }{ \sin( \alpha ) }

39.

Write a letter to your friend ​

Answer»

Answer:

about which THING PLS FOLLOW ME AND MARK ME AS A BRANLIST RADHE RADHE

40.

The quotient of 9/34 and 5/4​

Answer»

ANSWER:

\frac{9}{36}  \div  \frac{5}{4}  \\  \frac{9}{36}  \times  \frac{4}{5}  =  \frac{1}{5}

HOPE this helps you please MARK me as BRAINLIEST and FOLLOW me I will follow u

41.

Draw join bar graph​

Answer»

ANSWER:

hii NICE ONE 1⃣1⃣

Step-by-step EXPLANATION:

plz brilliant list me

42.

36 lind the cost of the canvas ortne tentameraeocupees umdess.A stick is.like a cylinder having radius 7cm 3 zdcm. From this 2 herrisphere ae hzóng rasimu wetzecut off at the 2 ends. Find the volume of these 2 hemisphere 8 find the test di remaining stik​

Answer»

ANSWER:

hfhcncfjfjfjfjfkgjfjfkrk

43.

पॉलिथीन एक बहुलक है(A) इथेन का (B) इथीन का(C) प्रोपीन का(D) इथाइन का​

Answer»

ANSWER:

OPTION (A)

Step-by-step EXPLANATION:

i HOPE your HELP

44.

For the data if maximum observation is 86 and minimum observation is 23 andnumber of classes to be taken is 7 then class width of frequency distribution is​

Answer»

Answer:

ž gfs6q266 I have a few things I want you are 6C69B6E2 for now but R U GOING back and not be a good GUY and u

45.

Id 56(e) 53.Find the HCF by long division(a) 132 and 154(b)(d) 594 and 792(e)​

Answer»

Answer:

HCF of 132 and 154=22

(LKB MATHS TUTORIAL)

46.

Notices are always displayed on​

Answer»

ANSWER:

NOTICE Board

Hope it help's you

Plz MARK my Answer as Brainliest

47.

In a circle of diameter 56 cm, an arc subtends an angle of 60° at the centre, then what will be the length of arc.pls answer i will mark u brainliest

Answer»

Step-by-step EXPLANATION:

28 is the ANSWER for above question

my explanation is GIVEN above

so CHECK it..

48.

5 - 3x /4 -2 = 3-x/5 - 7-4x/5 find equation and verify.​

Answer»

ANSWER:

kskdkfifidididkdkdkdidkdidkdkdkdkdkdkdkdkddkdkdkdkdjdjd

49.

The weight of 25 students of standard 8 is shown below in kilograms. Prepare afrequency distribution table of students in which one group is of 46-50 33 46 55 52 43 39 38 53 43 4537 49 42 46 43 38 43 47 42 4839 40 48 51 50​plz solve this question step by step​

Answer»

Answer:

Step-by-step explanation:

Given :   The weight of 25 STUDENTS of standard 8 is shown in kilograms.

.33 46 55 52 43 39 38 53 43 45 37 49 42 46 43 38 43 47 42 48 39 40 48 51 50​

To Find : a frequency distribution table of students  in which one group is of 46-50

Solution:

CLASS       Tally Marks  Frequency

31 - 35         |                 1

36 - 40        |           6

41 - 45         ||           7

46 - 50        ||           7

51 - 55         ||||               4

50.

What is 21 in the ratio 1:6

Answer»

Answer:

18answer

Step-by-step EXPLANATION:

LET the no.be x

x+6x=21

x=21/7

x=3

6x=6×3=18answer