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. |
In a group of 65 people 40 like cricket, 10 like both cricket and tennis, how like tennis only and not cricket? |
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Answer» In a group of 65 people 40 like cricket, 10 like both cricket and tennis, how like tennis only and not cricket? |
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| 2. |
limx→02x2+3x+4x2+3x+2 |
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Answer» limx→02x2+3x+4x2+3x+2 |
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| 3. |
Find the roots of the equation 2x2+4x+6=0 |
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Answer» Find the roots of the equation 2x2+4x+6=0 |
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| 4. |
The Value of 14C2+14C3+14C4+.....+14C14 is |
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Answer» The Value of 14C2+14C3+14C4+.....+14C14 is |
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| 5. |
Consider a plane x + y - z = 1 and the point A(1, 2, -3). A line L has the equation x = 1 + 3r, y = 2 – r, z = 3 + 4r. The coordinate of a point B of line L, such that AB is parallel to the plane, is |
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Answer» Consider a plane x + y - z = 1 and the point A(1, 2, -3). A line L has the equation x = 1 + 3r, y = 2 – r, z = 3 + 4r. |
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| 6. |
The vertices of an acute angled triangle are A(x1,x1tanα),B(x2,x2tanβ) and C(x3,x2tanγ). If origin is the circumcentre of △ABC and H(a,b) be its orthocentre, then ba equals to (where x1,x2,x3 are positive) |
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Answer» The vertices of an acute angled triangle are A(x1,x1tanα),B(x2,x2tanβ) and C(x3,x2tanγ). If origin is the circumcentre of △ABC and H(a,b) be its orthocentre, then ba equals to |
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| 7. |
If ∫x2⋅e−2x dx=e−2x(ax2+bx+c)+d, where d is the constant of integration, then the value of ∣∣∣abc∣∣∣ is |
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Answer» If ∫x2⋅e−2x dx=e−2x(ax2+bx+c)+d, where d is the constant of integration, then the value of ∣∣∣abc∣∣∣ is |
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| 8. |
If the inclination of the line joining the points (x,−3) and (2,5) is 135∘, then the value of x is |
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Answer» If the inclination of the line joining the points (x,−3) and (2,5) is 135∘, then the value of x is |
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| 9. |
The position vectors of the four angular points of a tetrahedron OABC are (0,0,0),(0,0,2),(0,4,0),(6,0,0) respectively. A point P inside the tetrahedron is at the same distance r from the four plane faces of the tetrahedron. Then the value of 9r is |
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Answer» The position vectors of the four angular points of a tetrahedron OABC are (0,0,0),(0,0,2),(0,4,0),(6,0,0) respectively. A point P inside the tetrahedron is at the same distance r from the four plane faces of the tetrahedron. Then the value of 9r is |
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| 10. |
Find all the points on x+y=2, which are at a distance of 45 units from 4x+3y=7. |
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Answer» Find all the points on x+y=2, which are at a distance of 45 units from 4x+3y=7. |
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| 11. |
If x1 and x2 are two real solutions of the equation (x)lnx2=e18, then the product (x1.x2) equals |
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Answer» If x1 and x2 are two real solutions of the equation (x)lnx2=e18, then the product (x1.x2) equals |
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| 12. |
Equations to the sides of a triangle are x−3y=0, 4x+3y=5 and 3x+y=0. The line 3x−4y=0 passes through the |
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Answer» Equations to the sides of a triangle are x−3y=0, 4x+3y=5 and 3x+y=0. The line 3x−4y=0 passes through the |
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| 13. |
Column – 1 represents equation of straight lines Column – 2 represents position of points A ≡ (1, 4) and B(4, 3) w.r.t. equation of line in Column - 1 Column – 3 represents the sum of length of perpendiculars from points A and B to the lines in Column-1 Column 1Column 2Column 3(I) L1:y−x+1=0(i) Both points lie on the same side of the line(p) 7√55 units(II) L2:6y+x−11=0(ii) Both points lie on the opposite side of the line(Q) 2√2 units(III) L3:y−2x+2=0(iii) Both points lie on the line(R) 25√3737 units(IV) L4:3y+x−13=0(iv) One point (out of A, B) lie on the line(S) 0 units Which of the following options is the only INCORRECT combination? |
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Answer» Column – 1 represents equation of straight lines |
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| 14. |
The mean of the marks obtained by 250 students in mathematics was 50. The mean marks of the top 50 students and the last 100 students were 75 and 25 respectively. Then the mean mark of the remaining 100 students is |
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Answer» The mean of the marks obtained by 250 students in mathematics was 50. The mean marks of the top 50 students and the last 100 students were 75 and 25 respectively. Then the mean mark of the remaining 100 students is |
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| 15. |
If x∈[0,2π], then the number of solutions of the equation 81cos2x+81sin2x=30 is |
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Answer» If x∈[0,2π], then the number of solutions of the equation 81cos2x+81sin2x=30 is |
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| 16. |
If xdydx=y(log y−log x+1), then the solution of the equation is |
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Answer» If xdydx=y(log y−log x+1), then the solution of the equation is |
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| 17. |
pth term of the series (3−1n)+(3−2n)+(3−3n)+.... will be |
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Answer» pth term of the series (3−1n)+(3−2n)+(3−3n)+.... will be |
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| 18. |
Find dydxof the functions given in question. yx=xy. |
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Answer» Find dydxof the functions given in question. yx=xy. |
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| 19. |
Round the following numbers to 2 significant digits (a) 3472, (b) 84.16, (c) 2.55 and (d) 28.5. |
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Answer» Round the following numbers to 2 significant digits (a) 3472, (b) 84.16, (c) 2.55 and (d) 28.5. |
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| 20. |
The square root of 3−4i is |
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Answer» The square root of 3−4i is |
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| 21. |
Write the value of √−25×√−9. |
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Answer» Write the value of √−25×√−9. |
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| 22. |
The line x−23=y−34=z−40 is parallel to |
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Answer» The line x−23=y−34=z−40 is parallel to |
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| 23. |
The solution of the equation 8sinx=√3cosx+1sinx is/are given by |
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Answer» The solution of the equation 8sinx=√3cosx+1sinx is/are given by |
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| 24. |
Show that the points A(3, 3, 3), B(0, 6, 3), C(1, 7, 7) and D(4, 4, 7) |
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Answer» Show that the points A(3, 3, 3), B(0, 6, 3), C(1, 7, 7) and D(4, 4, 7) |
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| 25. |
The pole of 3x+4y−45=0 with respect to the circle x2+y2−6x−8y+5=0 is |
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Answer» The pole of 3x+4y−45=0 with respect to the circle x2+y2−6x−8y+5=0 is |
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| 26. |
If the area A bounded by the curve y=x2+2x−3 and the line y=kx+1 is minimum, then the value of 6A is |
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Answer» If the area A bounded by the curve y=x2+2x−3 and the line y=kx+1 is minimum, then the value of 6A is |
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| 27. |
Let f(n) = [12+(n−1)50](n2), where [n] denotes the greatest integer less than or equal to n, then ∑100n=1f(n) is equal to; |
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Answer» Let f(n) = [12+(n−1)50](n2), where [n] denotes the greatest integer less than or equal to n, then ∑100n=1f(n) is equal to; |
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| 28. |
Let A be the set of first 10 natural numbers and R be a relation on A defined by (x,y)∈R⇔x+2y=10. Then the range of R is |
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Answer» Let A be the set of first 10 natural numbers and R be a relation on A defined by (x,y)∈R⇔x+2y=10. Then the range of R is |
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| 29. |
A wheel make 360 revolutions in one minute .Through how many radians does it turn in one second |
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Answer» A wheel make 360 revolutions in one minute .Through how many radians does it turn in one second |
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| 30. |
The slope of the line formed by joining the points A(1, 3) and B(4, 7) is . |
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Answer» The slope of the line formed by joining the points A(1, 3) and B(4, 7) is |
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| 31. |
Ravi and Fathima have two kids - Tina and Bobby. Fathima is Bobby's _____. |
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Answer» Ravi and Fathima have two kids - Tina and Bobby. Fathima is Bobby's _____. |
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| 32. |
For the differential equation given in the question find a particular solution satisfying the given condition. (1+x2)dydx+2xy=11+x2,where y=0 and x=1. |
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Answer» For the differential equation given in the question find a particular solution satisfying the given condition. |
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| 33. |
limx→1sinπxx−1 is equal to |
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Answer» limx→1sinπxx−1 is equal to |
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| 34. |
(i) A company is having a current ratio of 3 : 1. Its current liabilities are Rs 90,000. The accountant of the firm is interested in maintaining it to its standard ratio by purchasing certain assets on credit. Find out the value of asset to be purchased. (ii) A company is having its operating ratio equals to 80%. Find out its operating profit ratio. |
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Answer» (i) A company is having a current ratio of 3 : 1. Its current liabilities are Rs 90,000. The accountant of the firm is interested in maintaining it to its standard ratio by purchasing certain assets on credit. Find out the value of asset to be purchased. (ii) A company is having its operating ratio equals to 80%. Find out its operating profit ratio. |
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| 35. |
Trigonometric EquationsGeneral Solutions1. tan x=2P. 2nπ±2π3,n∈I2. sin x=√32Q. nπ−π4,n∈I3. cos x=−12R. nπ+(−1)nπ3,n∈I4. cot x=−1S. nπ+tan−1(2),n∈I |
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Answer» Trigonometric EquationsGeneral Solutions1. tan x=2P. 2nπ±2π3,n∈I2. sin x=√32Q. nπ−π4,n∈I3. cos x=−12R. nπ+(−1)nπ3,n∈I4. cot x=−1S. nπ+tan−1(2),n∈I |
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| 36. |
There are 25 railway stations between Nellore and Hyderabad. The number of different kinds of single second class tickets to be printed so as to enable a passenger to travel from one station to another is |
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Answer» There are 25 railway stations between Nellore and Hyderabad. The number of different kinds of single second class tickets to be printed so as to enable a passenger to travel from one station to another is |
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| 37. |
Prove that: cos θ1−sin θ=tan (π4+θ2) |
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Answer» Prove that: cos θ1−sin θ=tan (π4+θ2) |
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| 38. |
If (p ∧∼q)∧(p∧r)→ ∼p ∨q is false, then the truth values of p,q and r are, repectively : |
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Answer» If (p ∧∼q)∧(p∧r)→ ∼p ∨q is false, then the truth values of p,q and r are, repectively : |
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| 39. |
Consider three functions, f(x)=x3+x2+x+1, g(x)=2xx2+1 and h(x)=sin−1x−cos−1x+tan−1x−cot−1x and let p(x) be a differentiable function on R defined as p(x)={a∫x0√p(t)dt+b;x>0x2+4x+1;x≤0 where, a, b ϵ(0,∞) and tangent drawn to the graph of p(x) at x = 1 is y = mx + c Column 1 Column 2 Column 3(I)If range of f(g(x)) is [l,m],(i)a=(P)1 then (l+m)= (II)The number of integers in the(ii)b=(Q)3 range of g(f(x)) is equal to (III)The maximum value of(iii)|c|=(R)4 g(h(x)) is equal to (IV)If the minimum value of(iv)(m−7)=(S)5 h(g(f(x))) is kπ2, then |k| is equalto Which of the following option is the only correct combination? |
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Answer» Consider three functions, f(x)=x3+x2+x+1, g(x)=2xx2+1 and h(x)=sin−1x−cos−1x+tan−1x−cot−1x and let p(x) be a differentiable function on R defined as p(x)={a∫x0√p(t)dt+b;x>0x2+4x+1;x≤0 where, a, b ϵ(0,∞) and tangent drawn to the graph of p(x) at x = 1 is y = mx + c |
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| 40. |
For natural numbers m, n if (1−y)m(1+y)n=1+a1y+a2y2+...and a1=a2=10,then(m,n) is |
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Answer» For natural numbers m, n if (1−y)m(1+y)n=1+a1y+a2y2+...and a1=a2=10,then(m,n) is |
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| 41. |
Find the equation of the line mid - way between the parallel lines 9x+6y−7=0 and 3x+2y+6=0. |
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Answer» Find the equation of the line mid - way between the parallel lines 9x+6y−7=0 and 3x+2y+6=0. |
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| 42. |
Show that the Signum function f:R→R, given by f(x)=⎧⎪⎨⎪⎩1, if x>00, if x=0−1, if x<0 is neither one-one nor onto. |
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Answer» Show that the Signum function f:R→R, given by f(x)=⎧⎪⎨⎪⎩1, if x>00, if x=0−1, if x<0 is neither one-one nor onto. |
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| 43. |
f(x)=2∣∣x−1x−1∣∣ ∀ x& x≠1, What should be the value of f(x) at x=1 so that it is differentiable from (−∞,∞) ___ |
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Answer» f(x)=2∣∣x−1x−1∣∣ ∀ x& x≠1, What should be the value of f(x) at x=1 so that it is differentiable from (−∞,∞) |
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| 44. |
If P(B) = 0.5 and P(A∩B)=0.32, find P(AB) . |
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Answer» If P(B) = 0.5 and P(A∩B)=0.32, find P(AB) . |
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| 45. |
The number of possible outcomes in a throw of 5 ordinary dice in which at least one of the dice shows an odd number is |
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Answer» The number of possible outcomes in a throw of 5 ordinary dice in which at least one of the dice shows an odd number is |
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| 46. |
If ln=∫(1+x+x−1)ex+x−1dx= |
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Answer» If ln=∫(1+x+x−1)ex+x−1dx= |
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| 47. |
Find the cube of a+3b. |
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Answer» Find the cube of a+3b. |
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| 48. |
∫4x3(x6−1)(2x6+x4+1)2 dx is |
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Answer» ∫4x3(x6−1)(2x6+x4+1)2 dx is |
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| 49. |
Find the value (tan(2212)∘×(√2+1) |
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Answer» Find the value (tan(2212)∘×(√2+1) |
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| 50. |
Show that the given differential equation is homogeneous and then solve it. (x2−y2)dx+2xydy=0 |
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Answer» Show that the given differential equation is homogeneous and then solve it. |
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