InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. | 
                                    If the tangent at point (1,1) on y2=x(2−x)2 meets the curve again at point P, then P is | 
                            
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                                   Answer»  If the tangent at point (1,1) on y2=x(2−x)2 meets the curve again at point P, then P is  | 
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| 202. | 
                                    If the sum of the coefficients in the expansion of (a+b)n is 4096, then the greatest coefficient in the expansion is | 
                            
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                                   Answer»  If the sum of the coefficients in the expansion of (a+b)n is 4096, then the greatest coefficient in the expansion is   | 
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| 203. | 
                                    If ∫dxx+x7=p(x), then ∫x6x+x7dx is equal to (where C is constant of integration) | 
                            
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                                   Answer»  If ∫dxx+x7=p(x), then ∫x6x+x7dx is equal to   | 
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| 204. | 
                                    If the vectors a→=i^-2j^+3k^ and b→=3i^-6j^+mk^ are collinear, then m = ________________. | 
                            
| Answer» If the vectors are collinear, then m = ________________. | |
| 205. | 
                                    A cup of coffee cools from 90∘C to 80∘C in t minutes, when the room temperature is 20∘C. The time taken by a similar cup of coffee to cool from 80∘C to 60∘C at a room temperature same at 20∘C is - | 
                            
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                                   Answer»  A cup of coffee cools from 90∘C to 80∘C in t minutes, when the room temperature is 20∘C. The time taken by a similar cup of coffee to cool from 80∘C to 60∘C at a room temperature same at 20∘C is -  | 
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| 206. | 
                                    Let a function f is a strictly increasing and f′′(x)<0, also a,b and c are three distinct real numbers in the domain of inverse of f(x). If A=f−1(a)+f−1(b)+f−1(c)3 and B=f−1(a+b+c3), then which of the following is correct | 
                            
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                                   Answer»  Let a function f is a strictly increasing and f′′(x)<0, also a,b and c are three distinct real numbers in the domain of inverse of f(x). If A=f−1(a)+f−1(b)+f−1(c)3 and B=f−1(a+b+c3), then which of the following is correct  | 
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| 207. | 
                                    If x^2-2px+q=0 has two equal roots then the equation (1+y)x^2 -2(p+y)x +(q+y)=0 will have real and distinct roots when | 
                            
| Answer» If x^2-2px+q=0 has two equal roots then the equation (1+y)x^2 -2(p+y)x +(q+y)=0 will have real and distinct roots when | |
| 208. | 
                                    From a point P(λ,λ,λ), perpendiculars PQ and PR are drawn respectively on the lines y = x, z = 1 and y = -x, z = -1. If P is such that ∠QPR is a right angle, then the possible value(s) of λ is (are) | 
                            
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                                   Answer»  From a point P(λ,λ,λ), perpendiculars PQ and PR are drawn respectively on the lines y = x, z = 1 and y = -x, z = -1. If P is such that ∠QPR is a right angle, then the possible value(s) of  | 
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| 209. | 
                                    In how many ways can a club consisting of 20 people choose a president, a secretary, and a treasurer? | 
                            
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                                   Answer»  In how many ways can a club  consisting of 20 people choose a president, a secretary, and a treasurer?     | 
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| 210. | 
                                    If −4≤|x|≤2, then x belongs to | 
                            
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                                   Answer»  If −4≤|x|≤2, then x belongs to  | 
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| 211. | 
                                    Let f be a function defined by f(x)=x−5x−3;x≠3, fk(x) denote the composition of f with itself taken k times i.e f3(x)=f(f(f(x)))Then | 
                            
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                                   Answer»  Let f be a function defined by f(x)=x−5x−3;x≠3, fk(x) denote the composition of f with itself taken k times i.e f3(x)=f(f(f(x)))  | 
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| 212. | 
                                    If limx→∞(√x2−x+1−ax−b)=0, then for k≥2, limn→∞sec2n(k! πb) is equal to | 
                            
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                                   Answer»  If limx→∞(√x2−x+1−ax−b)=0, then for k≥2, limn→∞sec2n(k! πb) is equal to  | 
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| 213. | 
                                    Equation that represents the given graph is | 
                            
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                                   Answer»  Equation that represents the given graph is   | 
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| 214. | 
                                    Find the equation of the hyperbola satisfying the give conditions: Foci (±4, 0), the latus rectum is of length 12 | 
                            
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                                   Answer»  Find the equation of the hyperbola satisfying the give conditions: Foci (±4, 0), the latus rectum is of length 12  | 
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| 215. | 
                                    The rank of the word SUCCESS, if all possible permutations of the word SUCCESS are arranged in dictionary order is | 
                            
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                                   Answer»  The rank of the word SUCCESS, if all possible permutations of the word SUCCESS are arranged in dictionary order is  | 
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| 216. | 
                                    The position of a particle moving rectilinearly is given by x = t^3 - 3*t^2 - 10. Find the distance traveled by the particle in first 4s starting from t=0. | 
                            
| Answer» The position of a particle moving rectilinearly is given by x = t^3 - 3*t^2 - 10. Find the distance traveled by the particle in first 4s starting from t=0. | |
| 217. | 
                                    Show that (i) (ii) | 
                            
| Answer» Show that (i) (ii) | |
| 218. | 
                                    How to find doman and range? | 
                            
| Answer» How to find doman and range? | |
| 219. | 
                                    Integration of sin 4x sin x | 
                            
| Answer» Integration of sin 4x sin x | |
| 220. | 
                                    The angle θ, 0<θ<π2, which increases twice as fast as its sine, is _________________. | 
                            
| Answer» The angle which increases twice as fast as its sine, is _________________. | |
| 221. | 
                                    Let P(x)=x2+bx+c, where b and c are integers. If P(x) is a facter of both x4+6x2+25 and 3x4+4x2+28x+5, then value of P(1) is - | 
                            
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                                   Answer»  Let P(x)=x2+bx+c, where b and c are integers. If P(x) is a facter of both x4+6x2+25 and 3x4+4x2+28x+5, then value of P(1) is -   | 
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| 222. | 
                                    Probability that A speaks truth is 4/5, A coin is tossed, A reports that a head appears. the probability that actually there was head is (a) 45 (b)12 (c)15 (d) 25 | 
                            
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                                   Answer»  Probability that A speaks truth is 4/5, A coin is tossed, A reports that a head appears. the probability that actually there was head is (a) 45 (b)12 (c)15 (d) 25  | 
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| 223. | 
                                    The maximum value of sin(x+π6)+cos(x+π6) in the interval (0,π2) is attained at | 
                            
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                                   Answer»  The maximum value of sin(x+π6)+cos(x+π6) in the interval (0,π2) is attained at  | 
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| 224. | 
                                    If the extremities of the latus rectum of the ellipse x225+y216=1 is (α,β), then the distance between the point P(1,1) and (α,β), when α>0 is/are | 
                            
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                                   Answer»  If the extremities of the latus rectum of the ellipse x225+y216=1 is (α,β), then the distance between the point P(1,1) and (α,β), when α>0 is/are  | 
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| 225. | 
                                    Let (1−x+x4)10=a0+a1x+a2x2+.....+a40x40, then the correct option(s) is/are | 
                            
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                                   Answer»  Let (1−x+x4)10=a0+a1x+a2x2+.....+a40x40, then the correct option(s) is/are  | 
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| 226. | 
                                    For given binary operation ∗ defined below, determine whether ∗ is binary, commutative or associative. (ii)On Q, define a∗b=ab+1 | 
                            
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                                   Answer»  For given binary operation ∗ defined below, determine whether ∗ is binary, commutative or associative.  | 
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| 227. | 
                                    If cot−1(4+24)+cot−1(4+64)+cot−1(4+124)+.....∞=tan−1(ab), where a and b are relatively prime, then | 
                            
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                                   Answer»  If cot−1(4+24)+cot−1(4+64)+cot−1(4+124)+.....∞=tan−1(ab), where a and b are relatively prime, then  | 
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| 228. | 
                                    State whether the following statement are true or false. Justify (ii) If ∗ is a commutative binary operation on N, then a∗(b∗c)=(c∗b)∗a. | 
                            
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                                   Answer»  State whether the following statement are true or false. Justify  | 
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| 229. | 
                                    If α,β are the roots of the quadratic equation x2 – (a – 2)x –(a+1) =0, where 'a' is a variable then the least value of α2+β2 | 
                            
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                                   Answer»  If α,β are the roots of the quadratic equation x2 – (a – 2)x –(a+1) =0, where 'a' is a variable then the least value of α2+β2  | 
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| 230. | 
                                    What can be the maximum number of points of a team after the second round? | 
                            
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                                   Answer»  What can be the maximum number of points of a team after the second round?  | 
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| 231. | 
                                    The term independent of x(x>0, x≠1) in the expansion of [(x+1)(x2/3−x1/3+1)−(x−1)(x−√x)]10 is | 
                            
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                                   Answer»  The term independent of x(x>0, x≠1) in the expansion of [(x+1)(x2/3−x1/3+1)−(x−1)(x−√x)]10 is  | 
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| 232. | 
                                    5 whole numbers are randomly chosen and multiplied . Then find : a) probability that last digit is 5 . b) probability that last digit is 0 | 
                            
| Answer» 5 whole numbers are randomly chosen and multiplied . Then find : a) probability that last digit is 5 . b) probability that last digit is 0 | |
| 233. | 
                                    A parallelogram is constructed on 5→a+2→b and →a−3→b where |→a|=2√2, |→b|=3 and the angle between →a and →b is π4. If the magnitude of the longer diagonal is √αβγ where αβγ is three digit number then (β−α−γ) is | 
                            
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                                   Answer» A parallelogram is constructed on 5→a+2→b and →a−3→b  where |→a|=2√2, |→b|=3 and the angle between →a and →b is π4. If the magnitude of the longer diagonal is √αβγ where  αβγ  is three digit number then (β−α−γ) is  | 
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| 234. | 
                                    Let f(x)=sin−1(2x√1−x2), then | 
                            
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                                   Answer»  Let f(x)=sin−1(2x√1−x2), then  | 
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| 235. | 
                                    Write down all the subsets of the following sets: (i) { a } (ii) { a , b } (iii) {1, 2, 3} (iv) Φ | 
                            
| Answer» Write down all the subsets of the following sets: (i) { a } (ii) { a , b } (iii) {1, 2, 3} (iv) Φ | |
| 236. | 
                                    Let S be the mirror image of the point Q(1,3,4) with respect to the plane 2x–y+z+3=0 and let R(3,5,γ) be a point of this plane. Then the square of the length of the line segment SR is | 
                            
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                                   Answer» Let S be the mirror image of the point Q(1,3,4) with respect to the plane 2x–y+z+3=0 and let R(3,5,γ) be a point of this plane. Then the square of the length of the line segment SR is  | 
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| 237. | 
                                    The sum of the series S=1+2(1011)+3(1011)2+⋯ upto ∞ is equal to | 
                            
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                                   Answer»  The sum of the series S=1+2(1011)+3(1011)2+⋯ upto ∞ is equal to  | 
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| 238. | 
                                    How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated? | 
                            
| Answer» How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated? | |
| 239. | 
                                    Which of the following is an empty relation on AxB where A= {0, 2, 5}, B = {1, 4, 7} | 
                            
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                                   Answer»  Which of the following is an empty relation on AxB where A= {0, 2, 5}, B = {1, 4, 7}  | 
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| 240. | 
                                    The equation of the tangent to the hyperbola {3x^2-4y^2=12, which makes equal intercepts on the axes is | 
                            
| Answer» The equation of the tangent to the hyperbola {3x^2-4y^2=12, which makes equal intercepts on the axes is | |
| 241. | 
                                    If the equation x^2+bx+ca=0 and x^2+cx+ab=0 have a common root and b is not equal to c then their other roots will satisfy the equation | 
                            
| Answer» If the equation x^2+bx+ca=0 and x^2+cx+ab=0 have a common root and b is not equal to c then their other roots will satisfy the equation | |
| 242. | 
                                    sin−1{x+√1−x2√2} | 
                            
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                                   Answer» sin−1{x+√1−x2√2} | 
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| 243. | 
                                    95.Sin30 + tan 60 = what | 
                            
| Answer» 95.Sin30 + tan 60 = what | |
| 244. | 
                                    cos1(yb)=2log(x2),x>0⇒x2d2ydx2+xdydx= | 
                            
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                                   Answer»  cos1(yb)=2log(x2),x>0⇒x2d2ydx2+xdydx=  | 
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| 245. | 
                                    Let p:2 is a prime number q:cos30∘=12 r:sec2x+tan2x=1 s:√7 is an irrational number u:π2 is greater than 10 The statement which are all false is | 
                            
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                                   Answer»  Let p:2 is a prime number  | 
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| 246. | 
                                    If n(A) = 7; n(B) = 9, n(A ∩ B) = 4; then n[(A × B) ∩ (B × A)] is equal to | 
                            
| Answer» If n(A) = 7; n(B) = 9, n(A ∩ B) = 4; then n[(A × B) ∩ (B × A)] is equal to | |
| 247. | 
                                    Answer each of the following questions in one word or one sentence or as per exact requirement of the question.If the sides of a triangle are proportional to 2, 6 and 3-1, find the measure of its greatest angle. | 
                            
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                                   Answer» Answer each of the following questions in one word or one sentence or as per exact requirement of the question. If the sides of a triangle are proportional to 2, and , find the measure of its greatest angle.  | 
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| 248. | 
                                    From a pack of 52 cards, 4 are drawn one by one without replacement. Find the probability that all are aces(or kings). | 
                            
| Answer» From a pack of 52 cards, 4 are drawn one by one without replacement. Find the probability that all are aces(or kings). | |
| 249. | 
                                    If x and yare connected parametrically by the equation, without eliminating theparameter, find. | 
                            
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                                   Answer»  If x and y 
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| 250. | 
                                    Let P(x1,y1) and Q(x2,y2) where y1,y2<0, be the end points of the latus rectum of the ellipse x2+4y2=4. Then equation(s) of the parabola with latus rectum PQ is/are | 
                            
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                                   Answer»  Let P(x1,y1) and Q(x2,y2) where y1,y2<0, be the end points of the latus rectum of the ellipse x2+4y2=4. Then equation(s) of the parabola with latus rectum PQ is/are  | 
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