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. |
The equation of a circle whose x-coordinate of the centre is 5 and radius is 4 units and also touches the x-axis, is |
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Answer» The equation of a circle whose x-coordinate of the centre is 5 and radius is 4 units and also touches the x-axis, is |
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| 2. |
If the two circles x2+y2+2gx+2fy=0 and x2+y2+2g1x+2f1y=0 touch each other then |
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Answer» If the two circles x2+y2+2gx+2fy=0 and x2+y2+2g1x+2f1y=0 touch each other then |
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| 3. |
On which of the following intervals is the function f given by f(x)=x100+sinx−1 strictly decreasing. a) (0,1) b) (π2,π) c) (0,π2) d) None of these |
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Answer» On which of the following intervals is the function f given by f(x)=x100+sinx−1 strictly decreasing. b) (π2,π) c) (0,π2) |
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| 4. |
Find the particular solution of the differential equation extan ydx+(2−ex)sec2 ydy=0, given that y=π4 when x = 0 OR Find the particular solution of the differential equation dydx+2y tan x=sin x, given that y = 0 when x=π3. |
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Answer» Find the particular solution of the differential equation extan ydx+(2−ex)sec2 ydy=0, given that y=π4 when x = 0 |
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| 5. |
Check whether the function f given by f(x)=x100+sin x−1 strictly decreasing in the given interval. (π2,π) |
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Answer» Check whether the function f given by f(x)=x100+sin x−1 strictly decreasing in the given interval. (π2,π) |
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| 6. |
The orthogonal trajectories of the family of curves an−1y=xn are given by |
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Answer» The orthogonal trajectories of the family of curves an−1y=xn are given by |
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| 7. |
The total number of nine-digit numbers that can be formed using the digits 2,2,3,3,5,5,8,8 and 8 so that the odd digit occupy the even places is |
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Answer» The total number of nine-digit numbers that can be formed using the digits 2,2,3,3,5,5,8,8 and 8 so that the odd digit occupy the even places is |
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| 8. |
If r1 and r2 are distances of points on the ellipse 5x2+5y2+6xy-8=0 which are at maximum and minimum distance from the origin,then r1+r2 is equal to? |
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Answer» If r1 and r2 are distances of points on the ellipse 5x2+5y2+6xy-8=0 which are at maximum and minimum distance from the origin,then r1+r2 is equal to? |
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| 9. |
How is U related to L? Statement I. L has two sons; one of the sons is B. Statement II. The mother of U has only two sons --- B and C. |
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Answer» How is U related to L? Statement I. L has two sons; one of the sons is B. Statement II. The mother of U has only two sons --- B and C. |
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| 10. |
find the three terms in G.P whose product is 729 and sum of their product in pairs is 351 |
| Answer» find the three terms in G.P whose product is 729 and sum of their product in pairs is 351 | |
| 11. |
How to find cube root of improper cube decimal numbers? Like, how to find the cube root of 2.6 and of 3.612? |
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Answer» How to find cube root of improper cube decimal numbers? Like, how to find the cube root of 2.6 and of 3.612? |
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| 12. |
How many times must a fair coin be tossed so that the probability of getting at least one head is more than 80%? |
| Answer» How many times must a fair coin be tossed so that the probability of getting at least one head is more than 80%? | |
| 13. |
Equation of a straight line passing through the point (4,5) and equally inclined to the lines 3x=4y+7 and 5y=12x+6 is |
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Answer» Equation of a straight line passing through the point (4,5) and equally inclined to the lines 3x=4y+7 and 5y=12x+6 is |
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| 14. |
On friday night 20% of all the techies in India are under the influence of alcohol.The probability that the person will have an accident under the influence of alcohol is 0.001.The probability that a sober person will meet an accident is 0.0001.If the car on friday night smashed into the tree,the probability that the driver was under the influence of alcohol is? |
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Answer» On friday night 20% of all the techies in India are under the influence of alcohol.The probability that the person will have an accident under the influence of alcohol is 0.001.The probability that a sober person will meet an accident is 0.0001.If the car on friday night smashed into the tree,the probability that the driver was under the influence of alcohol is? |
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| 15. |
Distance between the foci of the Ellipse 25x2+16y2+100x−64y−236 = 0 is |
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Answer» Distance between the foci of the Ellipse 25x2+16y2+100x−64y−236 = 0 is |
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| 16. |
Find the coordinates of the foot of the perpendicular drawn from the origin to the plane 2x – 3y + 4z – 6 = 0. |
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Answer» Find the coordinates of the foot of the perpendicular drawn from the origin to the plane 2x – 3y + 4z – 6 = 0. |
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| 17. |
If A = {5, 6, 7, 8} B = {7, 8, 9, 11} A ∪ B = |
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Answer» If A = {5, 6, 7, 8} B = {7, 8, 9, 11} A ∪ B = |
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| 18. |
The point of intersection of the lines represented by the equation 2x2+3y2+7xy+8x+14y+8=0 is |
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Answer» The point of intersection of the lines represented by the equation 2x2+3y2+7xy+8x+14y+8=0 is |
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| 19. |
If 11 A.M.'s are inserted between 28 and 10, then the number of integral A.M.'s is |
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Answer» If 11 A.M.'s are inserted between 28 and 10, then the number of integral A.M.'s is |
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| 20. |
The sum of distances of the point P lying inside the triangle formed by lines y = 0; 4x – 3y = 0 and 3x + 4y – 9 = 0 is 3. Then the locus of P is |
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Answer» The sum of distances of the point P lying inside the triangle formed by lines y = 0; 4x – 3y = 0 and 3x + 4y – 9 = 0 is 3. Then the locus of P is |
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| 21. |
How many ways we can select four letters from the word mathematics? |
| Answer» How many ways we can select four letters from the word mathematics? | |
| 22. |
If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL and arranged as in a dictionary; then the position of the word SMALL is: |
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Answer» If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL and arranged as in a dictionary; then the position of the word SMALL is: |
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| 23. |
Write the number of quadratic equations, with real roots, which do not change by squaring their roots. |
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Answer» Write the number of quadratic equations, with real roots, which do not change by squaring their roots. |
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| 24. |
If α,β are the solution of a cos2θ+b sin2θ=c, then tanαtanβ |
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Answer» If α,β are the solution of a cos2θ+b sin2θ=c, then tanαtanβ |
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| 25. |
Prove that: tan69∘+tan66∘1−tan69∘tan66∘=−1 |
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Answer» Prove that: |
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| 26. |
In a Δ ABC, let ∠ C = π/2 .If r is the inradius and R is the circumradius of the triangle, then 2 (r +R) is equal to |
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Answer» In a Δ ABC, let ∠ C = π/2 .If r is the inradius and R is the circumradius of the triangle, then 2 (r +R) is equal to |
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| 27. |
Find dydx: y=xx |
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Answer» Find dydx: y=xx |
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| 28. |
Let X represent the difference between the number of heads and the number of tails obtained when a coin is tosses 6 times. What are possible values of X? |
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Answer» Let X represent the difference between the number of heads and the number of tails obtained when a coin is tosses 6 times. What are possible values of X? |
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| 29. |
If the function f:R→R be given by f(x)=x2+2 and g:R→R be given by g(x)=xx−1,x≠1, find fog and gof and hence fing fog(2) and gof(-3). |
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Answer» If the function f:R→R be given by f(x)=x2+2 and g:R→R be given by g(x)=xx−1,x≠1, |
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| 30. |
Let the eccentricity of the hyperbola x2a2−y2b2=1 be the reciprocal to that of the ellipse x2+4y2=4. If the hyperbola passes through the focus of the ellipse, then the focus of the hyperbola is at : |
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Answer» Let the eccentricity of the hyperbola x2a2−y2b2=1 be the reciprocal to that of the ellipse x2+4y2=4. If the hyperbola passes through the focus of the ellipse, then the focus of the hyperbola is at : |
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| 31. |
(sin A + cos A) ( 1- sinAcosA) = sin3 A+ cos3 A |
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Answer» (sin A + cos A) ( 1- sinAcosA) = sin3 A+ cos3 A |
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| 32. |
Prepare Double column Cash Book of Vinod from the following transactions: 2010 Amt. (Rs.) June. 1 Cash in hand Rs. 800, Bank overdraft .......5,700 June. 7 Received a cheque from Bharti ..................3,250 June. 9 Deposited the above cheque into bank. June. 15 Cheque Received from Panna Lal ........... 1,200 June. 20 Bharti's Cheque returned dishonoured June. 28 Panna Lal's cheque was endorsed to Kamal June. 30 Income Tax paid by cheque................... 150 |
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Answer» Prepare Double column Cash Book of Vinod from the following transactions: 2010 Amt. (Rs.) June. 1 Cash in hand Rs. 800, Bank overdraft .......5,700 June. 7 Received a cheque from Bharti ..................3,250 June. 9 Deposited the above cheque into bank. June. 15 Cheque Received from Panna Lal ........... 1,200 June. 20 Bharti's Cheque returned dishonoured June. 28 Panna Lal's cheque was endorsed to Kamal June. 30 Income Tax paid by cheque................... 150 |
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| 33. |
5x-6/x+6<1 solve the inequality |
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Answer» 5x-6/x+6<1 solve the inequality |
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| 34. |
The complex numbers 1,-1,iroot3 form a triangle which is a. Right angled b.isosceles c.equilateral d. Isosceles right angled |
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Answer» The complex numbers 1,-1,iroot3 form a triangle which is a. Right angled b.isosceles c.equilateral d. Isosceles right angled |
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| 35. |
A line passes through (2,-1,3) and is perpendicular to the lines →r=(^i+^j−^k)+λ(2^i−2^j+^k) and →r=(2^i−^j−3^k)+μ(^i+2^j+2^k) . Obtain its equation in vector and cartesian form. |
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Answer» A line passes through (2,-1,3) and is perpendicular to the lines →r=(^i+^j−^k)+λ(2^i−2^j+^k) and →r=(2^i−^j−3^k)+μ(^i+2^j+2^k) . Obtain its equation in vector and cartesian form. |
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| 36. |
If a directed line L passing through the origin makes angles α, β and y with x, y and z-axes, respectively, called direction angles, then what are cosα, cosβ, and cosy called? |
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Answer» If a directed line L passing through the origin makes angles α, β and y with x, y and z-axes, respectively, called direction angles, then what are cosα, cosβ, and cosy called? |
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| 37. |
A circle with radius 2 units passing through origin, cuts the x− axis and y− axis at A and B respectively. The locus of centroid of the triangle OAB is |
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Answer» A circle with radius 2 units passing through origin, cuts the x− axis and y− axis at A and B respectively. The locus of centroid of the triangle OAB is |
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| 38. |
Express the following in the form + where a, b Є R. |
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Answer» Express the following in the form + where a, b Є R.
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| 39. |
∫cos 2θ log(cos θ+sin θcos θ−sin θ)dθ= |
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Answer» ∫cos 2θ log(cos θ+sin θcos θ−sin θ)dθ= |
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| 40. |
If sin A = sin B and cos A = cos B, A > B, then |
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Answer» If sin A = sin B and cos A = cos B, A > B, then |
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| 41. |
If |x|<1 and |y|<1, find the sum of infinity of the following series: (x+y) + (x2+xy+y2) + (x3+x^2y+xy^2+y^3) + .... |
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Answer» If |x|<1 and |y|<1, find the sum of infinity of the following series: (x+y) + (x2+xy+y2) + (x3+x^2y+xy^2+y^3) + .... |
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| 42. |
Find the integrals of the functions. ∫cos2x−cos2αcosx−cosαdx. |
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Answer» Find the integrals of the functions. |
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| 43. |
Compare India and China on the basis of: (a) Below poverty line people (b) Growth rate of population (c) Growth rate of GDP. |
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Answer» Compare India and China on the basis of: (a) Below poverty line people (b) Growth rate of population (c) Growth rate of GDP. |
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| 44. |
If 2ycosA=xsinA and 2xsecA-ycosecA=3, then find the value of x2+4y2. |
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Answer» If 2ycosA=xsinA and 2xsecA-ycosecA=3, then find the value of x2+4y2. |
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| 45. |
There exists a triangle ABC satisfying the conditions |
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Answer» There exists a triangle ABC satisfying the conditions |
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| 46. |
Let x−2y+7=0 be a chord of the circle x2+y2−2x−10y+1=0. If the midpoint of the chord is P(α,β), then the value of 5|α−β| is |
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Answer» Let x−2y+7=0 be a chord of the circle x2+y2−2x−10y+1=0. If the midpoint of the chord is P(α,β), then the value of 5|α−β| is |
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| 47. |
The length of the perpendicular from the origin to the plane passing through the point ¯a and containing the line ¯r=¯b+λ¯c is : |
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Answer» The length of the perpendicular from the origin to the plane passing through the point ¯a and containing the line ¯r=¯b+λ¯c is : |
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| 48. |
Integrate the function. ∫√x2+4x+6dx. |
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Answer» Integrate the function. |
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| 49. |
Define function. |
| Answer» Define function. | |
| 50. |
Find the equation of the tangent at (2,3) on the curve y2=ax3+b is y=4x−5. Find the value of a and b |
| Answer» Find the equation of the tangent at (2,3) on the curve y2=ax3+b is y=4x−5. Find the value of a and b | |