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.

Who is the founder of "set theory " and statistics​

Answer»

ong>Answer:

I see

Step-by-step EXPLANATION:

the following table shows CLASSIFICATION of number of WORKER and the number of hours they work in a software COMPANY. find the median of the number of hours they work .

Daily no. of hours. 80-10. 10-12. 12-14. 14-16

Number of. worker. 150 500 300 50

2.

0. If y = (cos x)* + tan Vx, then finddydx​

Answer» ONG>ANSWER:

gkrtbha jayah jauana JAYANTI

3.

35. Find the number of terms in an A.P. 18,15,12,……., – 48 and also find the sum of all of its term

Answer» ONG>Answer:

no. of terms = 34

sum of terms = -1071

Step-by-step EXPLANATION:

a) -48 = 18 + (n-1) -3

-48 -18 = (n-1) -3

-66/-3 = n-1

n = 34

b) Sn = 34/2 [ 2×18 + (34-1)-3]

= 17 [ 36 + -99]

= 17(-63)

= -1701

4.

Is 4096 a cube number ? If yes , find its cube root . please solve it​

Answer»

ong>Answer:

16 x 16 x 16=4096

Step-by-step explanation:

So, the number GIVEN in the question is 4096. So, we can VERIFY the cube root of 4096 by multiplying 16 to THREE times. HENCE, the cube root of 4096 is 16.

5.

The ratio between the volume of two spheres is 64:24 then find the their ratio between surface area​

Answer»

/P>

HOPE this will HELPS you ...

6.

Thanks sriram anna! If i am not wrong with your name...XD​

Answer» ONG>ANSWER:

दिन बीत जाते है सुहानी यादें बनकर बाते रह जाती है कहानी बनकर पर दोस्त हंमेशा साथ रहते है कभी मुस्कान तो कभी आँखों का पानी बनकर !!

7.

Decimal Number0.5 +0.00 3 =​

Answer» ONG>ANSWER:

0.5 + 0.003

=0.503

Here is your answer

8.

Sum the series to infinity 2/5+3/5^2+2/5^3+3/5^4

Answer» ONG>ANSWER:

0.5408 is the CORRECT answer

9.

What is the class interval of the class 11-20​

Answer»

ong>Answer:

15.5

Step-by-step EXPLANATION:

CLASS mark= Lower limit+upper limit/2

so 11+20/2= 31/2=15.5

10.

Lf 2x+y=9 and 3x-y=6 then find the value of x​

Answer» ONG>ANSWER:

x=3 ,y=4 value of the HOUSE is a great

11.

In A ABC, CACB = 90 and coisperpendicular to ABa) If LA = 50, find LACOb) Provethat angles of A ACD and A B CDare equalc) ,Prove that CD² = ADXBDАBD​

Answer» CH it is the BRAINLY it will be the BEST.
12.

0.00, 0.00, UU.LU,110.17, 771.10, 171.01, 701.17.​

Answer»

ong>ANSWER:

in the ARRANGEMENT shown in figure there were TWO coils wound on a non conducting cylindrical ROD initially the key is not inserted.then the key is inserted and later removed.then

13.

A store raised the price of an item by exactly 10 per cent. Which of the following could not be the resulting price ofthe item ?(a) 5.50(b) 7.60(c) 11.00(d) 12.10​

Answer» E consider a CP of an item as 10

THEREFORE 10 % of 10 is 1

10 +1 =11

11 will be the SP of that item..

14.

Simplify(3 + V23) - V23​

Answer» V23 - V23

( + V23 and - V23 will GET CANCELLED)

= 3

hope it HELPS you ☺

15.

If A + B + C = 180, then tan (A + B/2) = _____.​

Answer»

ong>Answer:

According to the question we know that

A+B+C =180

So,

=> A+B=180-C

Let MULTIPLY by TAN we FOUND that

=> tan(A+B) = tan(180-C)

(TANA + tanb)/(1 - tana \: tanb)} = - tanc

=> tanA+tanB = -tanC(1-tanA tanB)

=> tanA+tanB= - tanC+tanA tanB tanC

=> tanA +tanB +tanC = tanA tanB tanC

Hence proved

16.

How many solutions does the pair of linear equations 2x+3y-5 =0 and 2x-3y+8 =0have?​

Answer»

olution

Step-by-step EXPLANATION:

a1/a2=2/2,b1/b2=3/3,c1/c2=5/8

a1/a2=b1/b2not EQUAL to c1/c2

17.

Write a complement of each angles:-a) 53b) 45 c) 1°d) 69 e) 81°angles :​

Answer»

ong>Answer:

complement means two angles SUM 90°

a) 53°=37°

b) 45°=45°

c) 1°=89°

d) 69°=21°

e) 81°=9°

Step-by-step explanation:

PLEASE MARK me as BRILLIANCE please

18.

If sina is equal to 3by4, calculate cosa and sina ​

Answer»

align="absmiddle" alt="\huge\tt\orange{Given}\to" class="latex-formula" id="TexFormula1" SRC="https://tex.z-dn.net/?f=%5Chuge%5Ctt%5Corange%7BGiven%7D%5Cto" title="\huge\tt\orange{Given}\to"> If Sina is Equal to \frac{<klux>3</klux>}{4}

\huge\tt\blue{To \: Find}\to EQUATION For Sina & Cosa.

\huge\tt\purple{Using \: Formula}\to Equation.

━━━━━━━━━━━━━━━━━━━━━━━━━━

Sin A = \frac{4}{4} \\ \sf \frac{Side \: Opposite \: to \angle A}{Hypotenuse} \implies \frac{3}{4} \\ \implies \frac{BC}{AC}=\frac{3}{4}

BC=3x \\ AC=4x \sf\blue{Check \: Image \to 1}

━━━━━━━━━━━━━━━━━━━━━━━━━━

( Hypotenuse )² = ( Hight )² + ( Base )²

AC² = AB² + BC²

(4x)² = AB² + (3x)²

16x² = AB² + 9x²

16x² – 9x² = AB²

7x² = AB²

AB² = 7x²

AB = \sqrt{7x²}

AB = \sqrt{7} x \sf\blue{Image \to 2}

━━━━━━━━━━━━━━━━━━━━━━━━━━

Last Steps LEARN in Image 3. 3 Images in TOTAL.

19.

AX square + 5 x is equal to 2 the roots of this polynomial reciprocal of each other find a​

Answer»

ong>ANSWER:

Answer

Given quadratic polynomial is P(X)=ax2+bx+c

Given the roots are RECIPROCAL to each other

Let the roots be α,α1

⟹ PRODUCT of roots is α×α1=ac

⟹ac=1⟹c=a

20.

Find the number of all possible arrangements with the letters of the word "INTERPOLATION" in which the vowels are always together​

Answer»

>

Find the number of all possible arrangements with the LETTERS of the WORD "INTERPOLATION" in which the vowels are ALWAYS TOGETHER

21.

Find the characteristic equation of [-2 2 2 1]​

Answer» ONG>ANSWER:

19 is RIGHT answer i thnik so

22.

I have 1000 chocolate and I will give 50 chocolate my friend and my mother give 679 chocolate how many chocolate I have​

Answer»

><U>THE ANSWER IS 1679 ....Because u will and will is in FUTURE TENSE..so fifty is in future

Step-by-step explanation:

so,,,1000+679=1678

23.

Find which term in the progression 76, 72, 68,... is 0

Answer»

ong>Step-by-step explanation:

please SEE attached file and you will GET ANSWER

24.

2. Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens):(a) 439 + 334 + 4,317 (b) 1,08,734 - 47,599 (c) 8325 - 491(d) 4,89,348 - 48,365​

Answer»

ong>Step-by-step EXPLANATION:

a) 439 + 334 + 4,317

(B) 1,08,734 - 47,599

(C) 8325 - 491

(d) 4,89,348 - 48,365

(d) 4,89,348 - 48,365

25.

Find the perimetre ofI b PB 85 cmА Ak0yoN'​

Answer»

ong>I THINK your question is wrong or incomplete.

PLZ send you question PICTURE.

Sorry for SPAM.

26.

(g.c.d. of x,x) *(l.c.m. of x,x) = ? let's see who is genius?​

Answer» ONG>ANSWER:

x*x

Step-by-step explanation:

MARK me as Brainliest if this HELPS...

27.

33. From a point P, the length of the tangent PT to a circle is 10 cm and the distance of P from the centre O is 26 cm. Find the radius of circle.​

Answer» ONG>ANSWER:

Here's your answer. HOPE it HELPS you.

28.

There are 7 girls on a bus and each girl has 7 backpacks. In each backpack, there are 7 big cats,for every big cat, there are 7 kittens on bus. Howmany legs are on the bus, not counting the driver?1. 10,0002. 11,0003. 10,9904. 9,990​

Answer» ONG>Given data:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎There are 7 girls on a bus and each girl has 7 backpacks. In each BACKPACK, there are 7 big cats. For every big cat, there are 7 kittens. How MANY legs are on the bus, excluding the driver.

Solution:

First LET's list out the organisms in the bus.

  • Driver
  • Girls
  • Big cats
  • Kittens

In the data, we are said that the number of legs of the driver shouldn't be counted. So, we shall ignore the driver.

It is given that there are 7 girls on the bus. Since HUMANS have 2 legs, there are:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ ‎\dashrightarrow\sf{7(2)=\bf{14\:legs}} (in the girls group).

Now, heading towards the big cats, it is given that each girl has 7 backpacks and in each backpack, there are 7 big cats. So, the number of backpacks in the bus is:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎\dashrightarrow\sf{7(7)=49}

Since there are 7 big cats in each backpack, the total number of big cats is:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎\dashrightarrow\sf{49(7)=343}

A big cat has 4 legs. So, the total number of legs in big cats group is:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ ‎\dashrightarrow\sf{343(4)=\bf{1372\: legs}}

As per the data, each big cat has 7 kittens. Hence, the number of kittens, 343 big cats has is:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎\dashrightarrow\sf{343(7)=2401}

We know big cats have 4 legs, their kittens will also have 4 legs and as a result, there are:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ ‎\dashrightarrow\sf{2401(4)=\bf{9604\: legs}} (in the kittens group).

Finally, on summing up the total number of legs in each group gives the required answer, i.e.,

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ ‎\dashrightarrow\sf{14+1372+9604}

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ ‎\dashrightarrow\sf{1386+9604}

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎‎ ‎ ‎\dashrightarrow\underline{\boxed{\bf{\red{10990}}}}

✦ Therefore, there are 10,990 legs on the bus, excluding the count of driver's legs. Hence, option (3) is correct.

_________________________________________

29.

G 2) what is the compound interest for 2 years and 3 years for Rs.soo at 10% role compounded annually​

Answer» ONG>ANSWER:

C.I

A=p (1+r/100)n

Here;

p=principal=100Rs.

n=time=2 times

r=rate=10%

A=100 (1+10/100)^2

=100×11/10×11/10

=1×11×11

=121

A=121Rs.

C.I=A-P

=121-100

=21Rs.

similar 3 YEAR

30.

number systemplease help metommorow my exam !try to help me if u can​

Answer»

ong>ANSWER:

2 + 2√3

Step-by-step EXPLANATION:

(1+√2/1+√3)+(1-√2/1+√3)

= 1 + √2 + √3 + 1 - √2 + √3

= 2 + 2√3 answer

I hope it is useful for you.

Plz 10 for it.

31.

The amount and the compound interest of Rs.64,000 in 17 year at 5% p.a., when theinterest is compound half-yearlyАRs. 4,920BRs. 4,921CRs. 4,930DRs. 4,932​

Answer» ONG>ANSWER:

D is answer

Step-by-step EXPLANATION:

jhoidjdornfjfodhffhjdjhdb

32.

Q Rani was cutting a solid cube of 3inches that has been painted red,green and black on the oppositefaces, into smaller cubes of one inchfor a project. How many of thesmaller cubes have at least twofaces painted ?​

Answer»

>

Step-by-step EXPLANATION:

Yes rani was INCHES that has been painted red,

green and black on the opposite

faces, into smaller cubes of one inch

for a project. How many of the

smaller cubes have at least two

faces painted ?inches that has been painted red,

green and black on the opposite

faces, into smaller cubes of one inch

for a project. How many of the

smaller cubes have at least two

faces painted ?Rani was cutting a SOLID cube of 3

inches that has been painted red,

green and black on the opposite

faces, into smaller cubes of one inch

for a project. How many of the

smaller cubes have at least two

faces painted ?

33.

-17/9+X=-13/4please tell me answer of this question​

Answer» ONG>ANSWER:

(-17+9X)/9=-13/4

(-17+9X)×4=(-13×9)

-68+36X=-117

36X=68-117

X=(-49)/36

34.

If y=logx³ then d²y/dx² = __________​

Answer» ONG>ANSWER:

eska answer UPPER PAPER me HAI

35.

If time=10 hrs and 40 minutes and speed= 36 km h find distance​

Answer» ONG>ANSWER:

distance=speed×time

=36×(10+40/60)

=36×(30+2)/3

=36×32/3

=12×32

=384km.

36.

Ravi is very good at Mathematics and Science. He wants to be an automobile engineer. His father knows this and so he regularly asks him some interestingquestions. One day he said: 'A train starts from a place A at 8 a.m. and arrives atplace B at 6.40 p.m. on the same day. If the speed of the train is 36 km per hour,find the distance travelled by the train?' Which among these do you think is thecorrect answer?​

Answer»

ong>Answer:

384Km

Step-by-step EXPLANATION:

Time taken=10hrs 40mins

so,TOTAL time in hours will be 32/3hrs

Again we know,

Speed= Distance/Time

36×32/3= distance

By CALCULATING,

Distance=384km

37.

Find the mode of the following data. Class internal Frequency0 - 1010 - 2020-3030-4040 - 506.91591N= 40​

Answer» ONG>Step-by-step explanation:

Class intervals Frequency

10-20 7

20-30 12

30-40 20

40-50 11

50-60 8

Here maximum frequency is 20 ,the class corresponding to this 30-40

So MODAL class is 30-40

Now lower limit of modal class (l)=30

Frequency (f1) of modal class =20

frequency (f0) of preceding the modal class =12

frequency (f2) of the class SUCCEEDING the modal class=11

Class size=10

Mod=l+[

2f1−f0−f2

f1−f0

]×h

Mod =30+[

2×20−12−11

20−12

]×10=30+

17

8

×10=30+4.705=34.705

38.

Find p if equation 4x + py +8=0​

Answer»

ong>Step-by-step EXPLANATION:

it will be very useful to u

please MARK me as brainiest

39.

Simply [1+tanΦ+secΦ] [1+cotΦ-cosecΦ]​

Answer» ONG>Answer:

If answer is CORRECT then MARK it as BRAINLIEST

40.

If 2 sin 2 thita =root 3 the value of thita is​

Answer» ONG>ANSWER:

SIN THITA =60 degree

Step-by-step explanation:

2sin thita =root 3

=>sinthita =root 3/2

=sin thita =60 degree

41.

How many triangle make base make of a triangular prism answer in one word​

Answer» ONG>Answer:

I don't KNOW answer but you people CANT answer my QUESTIONS

42.

5cm 7mm = _________________​

Answer» ONG>Answer:

75 CM is your answer

thankyou

43.

If cos 0 - 4 sin 0 = 1, thensin 0 + 4 cos e​

Answer» ONG>ANSWER:

±4

Step-by-step explanation:

GIVEN, cosθ−4sinθ=1

Let sinθ+4cosθ=x

Then (cosθ−4sinθ)

2

+(sinθ+4cosθ)=1+x

2

⇒cos

2

θ+16sin

2

θ+sin

2

θ+16cos

2

θ =1+x

2

⇒x

2

=16

⇒x=±4

Therefore, sinθ+4cosθ=±4

44.

4. The value of sin 60° x cos 30° is: 1A.413B.43C41D.2​

Answer»

ong>ANSWER:

1 is the correct answer I HOPE you like it

45.

The area of a rectangular field is 286 sq.cm and its length is 26cm, then it's breadth is​

Answer» ONG>Answer:

The breadth of the rectangular field is 11cm

Step-by-step explanation:

We KNOW

AREA OF RECTANGLE :L X B

LXB=286

26XB=286

B=286/26

B=11

46.

What is the cash value of a lease requiring payments of $837 at the beginning of every month for 7 years , if interest is 4 % compounded semi - annually ?​

Answer»

ong>What is the CASH value of a lease requiring PAYMENTS of $837 at the beginning of every month for 7 YEARS , if interest is 4 % compounded semi - annually ?

47.

The age of the two friends were in the ratio of 5: 2. If the sum of their ages is 56. Then after how many years their ratio will become 7:4? 121418o 16​

Answer»

ong>Answer:

After 16 YEARS

Step-by-step EXPLANATION:

Let age of two friends be x

5x + 2x = 56

7x = 56

x = 56/7

x = 8

5x = 5× 8 = 40 years

2x = 2 × 8 = 16 years

when his age will be 7:4 means :

7x and 4x

So , 7x = 7 × 8 = 56 years

4x = 4 × 8 = 32 years

So present age is 40 and 16

After how many years it became 56 and 32

So first friend age = 56 - 40 = 16

And second friend age = 32 - 16 = 16

So , after 16 years their age will be 7:4

Please!! mark as BRAINLIEST answer

Hope it helps!!

48.

On simplifying 4x2 – 3y2+ 2z2-5x2+ 2y2-2z2 we get a) -x2-y2b) -x2-y2+ z2c) y2- z2d) x2+ y2​

Answer» ONG>ANSWER:

this MUCH BIG question I don't know

49.

Radius and height of a conical tent are 7 mts and 10mts respectively, then the area A. 286.4 mt2B. 268.4 mt2c. 256.3 mt?​

Answer»

ANSWER:

Given:

  • A conical tent of radius = 7m
  • HEIGHT = 10m

To Find:

  • Area of the tent

Diagram:

\setlength{\unitlength}{1.5mm}\begin{picture}(5,5)\thicklines\put(0,0){\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\put(-0.5,-1){\line(1,2){13}}\put(25.5,-1){\line(-1,2){13}}\multiput(12.5,-1)(2,0){7}{\line(1,0){1}}\multiput(12.5,-1)(0,4){7}{\line(0,1){2}}\put(14,-0.5){\sf{7m}}\put(7.9,9){\sf{10m}}\put(14,25){\sf{\Large{A}}}\put(10,-3){\sf{\Large{B}}}\put(25.5,-3){\sf{\Large{C}}}\end{picture}

Solution:

As we are given a conical tent the area to be taken is LATERAL(curved) surface area.

We KNOW that,

⇒ Lateral Surface Area of a cone = π*r*L

Here, r is radius and l is slant height.

In the diagram, slant height is AC.

⇒ Slant height =√(radius²+height²)

⇒ l = √(7²+10²)

⇒ l = √(149) ≈ 12.20m

Now,

⇒ Lateral Surface Area of the conical tent = π*r*l

Here, π=22/7; r=7; l=12.20. So,

⇒ Lateral Surface Area of the conical tent = (22/7 * 7 * 12.20)m²

⇒ Lateral Surface Area of the conical tent = (22*12.20)m²

⇒ Lateral Surface Area of the conical tent = 268.4m²(option B)

Formula Used:

  • Lateral Surface Area of the conical tent = π*r*l

Learn More:

  • Volume of cylinder = πr²h
  • T.S.A of cylinder = 2πrh + 2πr²
  • Volume of cone = ⅓ πr²h
  • C.S.A of cone = πrl
  • T.S.A of cone = πrl + πr²
  • Volume of cuboid = l × b × h
  • C.S.A of cuboid = 2(l + b)h
  • T.S.A of cuboid = 2(lb + bh + lh)
  • C.S.A of CUBE = 4a²
  • T.S.A of cube = 6a²
  • Volume of cube = a³
  • Volume of sphere = (4/3)πr³
  • Surface area of sphere = 4πr²
  • Volume of hemisphere = ⅔ πr³
  • C.S.A of hemisphere = 2πr²
  • T.S.A of hemisphere = 3πr²
50.

If l=125 , f1=20,f0=13,f2=14 and h=20 , then mode of the grouped data is​

Answer»

ong>ANSWER:

MODE is 20

Step-by-step explanation:

As it was repeated two TIMES in the given DATA