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.

Number of ways of choosing four squares on the Chess board in such a way that all squares are on one diagonal line is

Answer»

Number of ways of choosing four squares on the Chess board in such a way that all squares are on one diagonal line is

2.

* A vector is defined as →f=y^i+x^j+z^k where ^i^j and ^k are unit vectors in Cartesian (x, y, z) coordinate system. The surface integral ∯f. ds over the closed surface S of a cube with vertices having the following coordinates;(0,0,0). (1,0,0), (0,0,1), (1,0,1), (1,1,1), (0,1,1), (1,1,0) is______1

Answer» * A vector is defined as f=y^i+x^j+z^k where ^i^j and ^k are unit vectors in Cartesian (x, y, z) coordinate system. The surface integral f. ds over the closed surface S of a cube with vertices having the following coordinates;

(0,0,0). (1,0,0), (0,0,1), (1,0,1), (1,1,1), (0,1,1), (1,1,0) is______
  1. 1
3.

If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL are arranged in a dictionary. Then the position of the word SMALL is : -

Answer»

If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL are arranged in a dictionary. Then the position of the word SMALL is : -

4.

If A and B are two events, then PA∩B = _____________.

Answer» If A and B are two events, then PAB = _____________.
5.

A line y =mx cuts the curve y square =4ax at point A and B. Find the equation of circle with AB as diameter

Answer» A line y =mx cuts the curve y square =4ax at point A and B. Find the equation of circle with AB as diameter
6.

One die of red colour, one of white colour and one of blue colour are placed in a bag. One die is selected at random and rolled, its colour and the number on its uppermost face is noted. Describe the sample space.

Answer» One die of red colour, one of white colour and one of blue colour are placed in a bag. One die is selected at random and rolled, its colour and the number on its uppermost face is noted. Describe the sample space.
7.

Find the maximum profit that a company can make, if the profit function is given by p(x)=41−72x−18x2.

Answer»

Find the maximum profit that a company can make, if the profit function is given by p(x)=4172x18x2.

8.

Evaluate:

Answer» Evaluate:
9.

∫π40tan2 x dx=

Answer» π40tan2 x dx=
10.

4. tan 3)4. tan-V3)

Answer» 4. tan 3)4. tan-V3)
11.

Equation of plane passing through (1,−3,−2) and perpendicular to planes x+2y+2z=5 and 3x+3y+2z=8 is

Answer»

Equation of plane passing through (1,3,2) and perpendicular to planes x+2y+2z=5 and 3x+3y+2z=8 is

12.

Consider the parabola y2=4x. Let P and Q be points on the parabola where P(4,–4) & Q(9,6). Let R be a point on the arc of the parabola between P and Q. Then the area of ΔPQR is largest when

Answer»

Consider the parabola y2=4x. Let P and Q be points on the parabola where P(4,4) & Q(9,6). Let R be a point on the arc of the parabola between P and Q. Then the area of ΔPQR is largest when

13.

If the angle of elevation of a cloud from a point P which is 25 m above a lake be 30∘ and the angle of depression of reflection of the cloud in the lake from P be 60∘, then the height of the cloud (in meters) from the surface of the lake is :

Answer»

If the angle of elevation of a cloud from a point P which is 25 m above a lake be 30 and the angle of depression of reflection of the cloud in the lake from P be 60, then the height of the cloud (in meters) from the surface of the lake is :

14.

If x= 7/8-5√2 , then the value of 2x^3-24x^2+ 71x +47.

Answer» If x= 7/8-5√2 , then the value of 2x^3-24x^2+ 71x +47.
15.

A farmer wants to construct a circular garden and a square garden in his field. He wants to keep the sum of their perimeters 600m. Prove that the sum of their areas is the least, when the side of the square garden is double the radius of the circular garden.

Answer» A farmer wants to construct a circular garden and a square garden in his field. He wants to keep the sum of their perimeters 600m. Prove that the sum of their areas is the least, when the side of the square garden is double the radius of the circular garden.
16.

A manufacturing company makes two models A and B of a product. Each piece of model A requires 9 labour hours for fabricating and 1 labour hour for finishing. Each piece of model B requires 12 labour hours for fabricating and 3 labour hours for finishing. For fabricating and finishing, the maximum labour hours available are 180 and 30 respectively. The company makes a profit of ₹8000 on each piece of model A and ₹12000 on each piece of model B. How many pieces of model A and model B should be manufactured per week to realise a maximum profit? What is the maximum profit per week?

Answer» A manufacturing company makes two models A and B of a product. Each piece of model A requires 9 labour hours for fabricating and 1 labour hour for finishing. Each piece of model B requires 12 labour hours for fabricating and 3 labour hours for finishing. For fabricating and finishing, the maximum labour hours available are 180 and 30 respectively. The company makes a profit of ₹8000 on each piece of model A and ₹12000 on each piece of model B. How many pieces of model A and model B should be manufactured per week to realise a maximum profit? What is the maximum profit per week?
17.

Find the sum of n terms of the series 5+11+19+29+41

Answer» Find the sum of n terms of the series 5+11+19+29+41
18.

10. How many numbers greater than 50000 can be formed with the digits 4,5,6,7and8 if no digit being repeated

Answer» 10. How many numbers greater than 50000 can be formed with the digits 4,5,6,7and8 if no digit being repeated
19.

32. f(x)=\sqrt{(\operatorname{sinx+\operatorname{cosx)^2-1

Answer» 32. f(x)=\sqrt{(\operatorname{sinx+\operatorname{cosx)^2-1
20.

A two wheeler agent sells scooters, motorcycles. In each body pattern two capacities 100c.c and 150c.c available. In each capacity there are five colours. The number of choices a customer will be having to buy a vehicle is:

Answer»

A two wheeler agent sells scooters, motorcycles. In each body pattern two capacities 100c.c and 150c.c available. In each capacity there are five colours. The number of choices a customer will be having to buy a vehicle is:

21.

Answer each of the following questions in one word or one sentence or as per exact requirement of the question.In ∆ABC, if a = 8, b = 10, c = 12 and C = λA, find the value of λ.

Answer» Answer each of the following questions in one word or one sentence or as per exact requirement of the question.



In ∆ABC, if a = 8, b = 10, c = 12 and C = λA, find the value of λ.
22.

If (1−y)(1+2x+4x2+8x3+16x4+32x5)=1−y6, where y≠1,x≠12, then the value of yx is

Answer»

If (1y)(1+2x+4x2+8x3+16x4+32x5)=1y6, where y1,x12, then the value of yx is

23.

x sin x

Answer»

x sin x

24.

Number of points where f(x)={max(|x2−x−2|, x2−3x),x≥0max(ln(−x), ex),x<0 is non differentiable, is:

Answer»

Number of points where f(x)={max(|x2x2|, x23x),x0max(ln(x), ex),x<0 is non differentiable, is:

25.

For |x|&lt;&lt;1,coth(x)can be approximated as

Answer»

For |x|<<1,coth(x)can be approximated as

26.

A G.P. consists of an even number of terms. If the sum of all the terms is 5 times the sum of terms occupying odd places, then find its common ratio.

Answer» A G.P. consists of an even number of terms. If the sum of all the terms is 5 times the sum of terms occupying odd places, then find its common ratio.
27.

The domain of sin−1[log3(x3)] is

Answer»

The domain of sin1[log3(x3)] is


28.

Find the range of the function given in graph

Answer»

Find the range of the function given in graph




29.

If f(x)=1x2−17x+66 then f(2x−2) will be discontinuous at x=

Answer»

If f(x)=1x217x+66 then f(2x2) will be discontinuous at x=

30.

If an,a2,a3,…… are in A.P., with common difference d, then the sum of the series sin d[sec a1 sec a2+sec a2 sec a3+……+sec an−1 sec an], is

Answer»

If an,a2,a3, are in A.P., with common difference d, then the sum of the series sin d[sec a1 sec a2+sec a2 sec a3++sec an1 sec an], is


31.

How many positive integers a less than 100 are there for which 2.3^(6n) + a.2^(3n+1) - 1 is divisible for by 7 for all positive integral values of n?

Answer» How many positive integers a less than 100 are there for which 2.3^(6n) + a.2^(3n+1) - 1 is divisible for by 7 for all positive integral values of n?
32.

If for complex numbers z1 and z2, arg(z1)−arg(z2)=0, then |z1−z2| is equal to

Answer»

If for complex numbers z1 and z2, arg(z1)arg(z2)=0, then |z1z2| is equal to

33.

Find HCF of 210 and 55 and express it as a linear combination of 210 and 55

Answer»

Find HCF of 210 and 55 and express it as a linear combination of 210 and 55

34.

Find the area of region bounded by curve y= x3 Here y=x+6 and x=0

Answer» Find the area of region bounded by curve y= x3 Here y=x+6 and x=0
35.

In the adjacent figure, 'P' is any arbitrary interior of the triangle ABC, H_a, H_b, H_c are the length of altitudes drawn from vertices A, B and C respectively. If x_a, x_b and x_c represent the distance of 'P' from sides BC, AC and AB respectively, then xaHa+xbHb+xcHcis always equal to

Answer»

In the adjacent figure, 'P' is any arbitrary interior of the triangle ABC, H_a, H_b, H_c are the length of altitudes drawn from vertices A, B and C respectively. If x_a, x_b and x_c represent the distance of 'P' from sides BC, AC and AB respectively, then

xaHa+xbHb+xcHcis always equal to


36.

Centre of circle passim through (0,0)and (1,0) and touching the circir x^2+y^2=9 is

Answer»

Centre of circle passim through (0,0)and (1,0) and touching the circir x^2+y^2=9 is

37.

An ordered pair (α,β) for which the system of linear equations(1+α)x+βy+z=2αx+(1+β)y+z=3αx+βy+2z=2has a unique solution, is:

Answer»

An ordered pair (α,β) for which the system of linear equations

(1+α)x+βy+z=2αx+(1+β)y+z=3αx+βy+2z=2

has a unique solution, is:

38.

The point where the origin has to be shifted so that the equation y2+4y+8x−2=0 will not contain y and the constant term is

Answer»

The point where the origin has to be shifted so that the equation y2+4y+8x2=0 will not contain y and the constant term is

39.

Which of the following is the quotient, obtained on dividing x3−3x2−10x+24 by x−4?

Answer»

Which of the following is the quotient, obtained on dividing x33x210x+24 by x4?

40.

Let z be a complex number such that the imaginary part of t is non zero and a = z2+z +1 is real.Then a cannot take the value

Answer»

Let z be a complex number such that the imaginary part of t is non zero and a = z2+z +1 is real.Then a cannot take the value


41.

Let (x,y,z) be points with integer coordinates satisfying the system of homogeneous equations: 3x−y−z=0−3x+z=0−3x+2y+z=0 Then the number of such points for which x2+y2+z2≤100 is ___

Answer»

Let (x,y,z) be points with integer coordinates satisfying the system of homogeneous equations:

3xyz=03x+z=03x+2y+z=0

Then the number of such points for which

x2+y2+z2100 is ___



42.

The underlined suffix has been used to form which part of speech? 1. Mobilise 2. Institutionalise 3. Authorise 4. Specialise

Answer»

The underlined suffix has been used to form which part of speech?

1. Mobilise

2. Institutionalise

3. Authorise

4. Specialise


43.

Differentiate thefunctions with respect to x.

Answer»

Differentiate the
functions with respect to x.


44.

13. Suppose that g(x)=1+\sqrt{}x and f(g(x)=3+2\sqrt{}x+x .then f(x) is

Answer» 13. Suppose that g(x)=1+\sqrt{}x and f(g(x)=3+2\sqrt{}x+x .then f(x) is
45.

Find the vector →a of magnitude 5√2, making an angle of π4 with x-axis, π2 with y-axis and an angle θ with z-axis.

Answer» Find the vector a of magnitude 52, making an angle of π4 with x-axis, π2 with y-axis and an angle θ with z-axis.
46.

For any sets A &amp; B,A∪(B−A)=

Answer»

For any sets A & B,A(BA)=

47.

18. The locus of the point of intersection of the tangents to the circle x= acosm ,y=asinm at the points,whose parametric angles differ by pi/3 is

Answer» 18. The locus of the point of intersection of the tangents to the circle x= acosm ,y=asinm at the points,whose parametric angles differ by pi/3 is
48.

If y = 2/sin theta + root 3 cos theta then the minimum value of Y is

Answer» If y = 2/sin theta + root 3 cos theta then the minimum value of Y is
49.

The eccentricity of the conic 4(2y−x−3)2−9(2x+y−1)2=80 is

Answer»

The eccentricity of the conic 4(2yx3)29(2x+y1)2=80 is

50.

In a hurdle race, a player has to cross 10 hurdles. The probability that he will clear each hurdle is . What is the probability that he will knock down fewer than 2 hurdles?

Answer» In a hurdle race, a player has to cross 10 hurdles. The probability that he will clear each hurdle is . What is the probability that he will knock down fewer than 2 hurdles?