Question Library
Browse our collection of questions across various subjects
Mathematics
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A die is tossed twice. What is the probability of getting a sum of 10?
NDA Mathematics 2013
NDA 2013
Mathematics
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In a binomial distribution, the occurrence and the non-occurrence of an event are equally likely and the mean is 6.…
NDA Mathematics 2013
NDA 2013
Mathematics
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If A and B are independent events such that P(A) = 1/5, P(A ∪ B) = 7/10, then what is…
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the variance of the first 11 natural numbers?
NDA Mathematics 2013
NDA 2013
Mathematics
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If three events A, B, C are mutually exclusive, then which one of the following is correct?
NDA Mathematics 2013
NDA 2013
Mathematics
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Which one of the following measures is determined only after the construction of cumulative frequency distribution?
NDA Mathematics 2013
NDA 2013
Mathematics
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Consider the following statements : 1. Both the regression coefficients have same sign. 2. If one of the regression coefficients…
NDA Mathematics 2013
NDA 2013
Mathematics
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The arithmetic mean of the squares of the first n natural numbers is
NDA Mathematics 2013
NDA 2013
Mathematics
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The mean of 20 observations is 15. On checking, it was found that two observations were wrongly copied as 3…
NDA Mathematics 2013
NDA 2013
Mathematics
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If a = 2i + 2j + 3k, b = -i + 2j + k and c = 3i +…
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the value of p for which the vector p(2i – j + 2k) is of 3 units length?
NDA Mathematics 2013
NDA 2013
Mathematics
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The vectors i – 2xj – 3yk and i + 3xj + 2yk are orthogonal to each other. Then the…
NDA Mathematics 2013
NDA 2013
Mathematics
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The position vectors of the points A and B are respectively 3i – 5j + 2k and i + j…
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the vector perpendicular to both the vectors i – j and i?
NDA Mathematics 2013
NDA 2013
Mathematics
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If the angle between the vectors i – mj and j + k is π/3, then what is the value…
NDA Mathematics 2013
NDA 2013
General Ability
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Two reactants in a flask produce bubbles of gas; it turns lime water into milky. The reactants in the flask…
NDA General Ability 2013
NDA 2013
General Ability
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Turmeric (Haldi) rapidly becomes coloured on addition of
NDA General Ability 2013
NDA 2013
General Ability
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A gas is evolved when a piece of zinc metal placed in dilute sulphuric acid (H₂SO₄). What is the gas…
NDA General Ability 2013
NDA 2013