Question Library
Browse our collection of questions across various subjects
Mathematics
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In eight throws of a die, 5 or 6 is considered a success. The mean and standard deviation of total…
NDA Mathematics 2019
NDA 2019
Mathematics
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Two cards are chosen at random from a deck of 52 playing cards. What is the probability that both of…
NDA Mathematics 2019
NDA 2019
Mathematics
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There are n socks in a drawer, of which 3 socks are red. If 2 of the socks are chosen…
NDA Mathematics 2019
NDA 2019
Mathematics
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Two symmetric dice flipped with each dice having two sides painted red, two painted black, one painted yellow and the…
NDA Mathematics 2019
NDA 2019
Mathematics
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If two fair dice are rolled then what is the conditional probability that the first dice lands on 6 given…
NDA Mathematics 2019
NDA 2019
Mathematics
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The mean of 100 observations is 50 and the standard deviation is 10. If 5 is subtracted from each observation…
NDA Mathematics 2019
NDA 2019
Mathematics
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Two independent events A and B are such that P(A ∪ B) = 2/3 and P(A ∩ B) = 1/6.…
NDA Mathematics 2019
NDA 2019
Mathematics
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If two variables X and Y are independent, then what is the correlation coefficient between them?
NDA Mathematics 2019
NDA 2019
Mathematics
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If A, B, C are three events, then what is the probability that at least two of these events occur…
NDA Mathematics 2019
NDA 2019
Mathematics
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A fair coin is tossed and an unbiased dice is rolled together. What is the probability of getting a 2…
NDA Mathematics 2019
NDA 2019
Mathematics
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A pair of fair dice is rolled. What is the probability that the second dice lands on a higher value…
NDA Mathematics 2019
NDA 2019
Mathematics
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A problem is given to three students A, B and C whose probabilities of solving the problem are 1/2, 3/4…
NDA Mathematics 2019
NDA 2019
Mathematics
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If A and B are two events such that P(A) = 0.5, P(B) = 0.6 and P(A ∩ B) =…
NDA Mathematics 2019
NDA 2019
Mathematics
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From a deck of cards, cards are taken out with replacement. What is the probability that the fourteenth card taken…
NDA Mathematics 2019
NDA 2019
Mathematics
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The angle of elevation of a tower of height h from a point A due South of it is x…
NDA Mathematics 2019
NDA 2019
Mathematics
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How many three-digit even numbers can be formed using the digits 1, 2, 3, 4 and 5 when repetition of…
NDA Mathematics 2019
NDA 2019
Mathematics
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If sin θ = –1/2 and tan θ = 1/√3, then in which quadrant does θ lie?
NDA Mathematics 2019
NDA 2019
Mathematics
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In a circle of diameter 44 cm, the length of a chord is 22 cm. What is the length of…
NDA Mathematics 2019
NDA 2019
Mathematics
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If sin θ + cos θ = √2 cos θ, then what is (cos θ – sin θ) equal to
NDA Mathematics 2019
NDA 2019
Mathematics
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What is the area of one of the loops between the curve y = c sin x and x-axis?
NDA Mathematics 2019
NDA 2019