Question Library
Browse our collection of questions across various subjects
Mathematics
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In the expansion of (1 + x)^43, if the coefficients of (2r + 1)ᵗʰ and (r + 2)ᵗʰ terms are…
NDA Mathematics 2018
NDA 2018
Mathematics
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If n = (2017)!, then what is1/log₂n + 1/log₃n + 1/log₄n + … + 1/log₂₀₁₇nequal to?
NDA Mathematics 2018
NDA 2018
Mathematics
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What is the value of the determinant |1! 2! 3!||2! 3! 4!||3! 4! 5!| ?
NDA Mathematics 2019
NDA 2019
Mathematics
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If n ∈ N, then 121ⁿ – 25ⁿ + 1900ⁿ – (– 4)ⁿ is divisible by which one of the…
NDA Mathematics 2018
NDA 2018
Mathematics
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If a set A contains 3 elements and another set B contains 6 elements, then what is the minimum number…
NDA Mathematics 2019
NDA 2019
Mathematics
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A geometric progression (GP) consists of 200 terms. If the sum of odd terms of the GP is m, and…
NDA Mathematics 2019
NDA 2019
Mathematics
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If |x² – 3x + 2| > x² – 3x + 2, then which one of the following is correct?
NDA Mathematics 2019
NDA 2019
Mathematics
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If the roots of the equation a(b – c)x² + b(c – a)x + c(a – b) = 0 are…
NDA Mathematics 2019
NDA 2019
Mathematics
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What is the value of k for which the sum of the squares of the roots of 2x² – 2(k…
NDA Mathematics 2019
NDA 2019
Mathematics
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If the sum of first n terms of a series is (n + 12), then what is its third term?
NDA Mathematics 2019
NDA 2019
Mathematics
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If A, B and C are subsets of a given set, then which one of the following relations is not…
NDA Mathematics 2019
NDA 2019
Mathematics
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What is the value of 1 – 2 + 3 – 4 + 5 – ….. + 101 ?
NDA Mathematics 2019
NDA 2019
Mathematics
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If both p and q belong to the set {1, 2, 3, 4}, then how many equations of the form…
NDA Mathematics 2019
NDA 2019
Mathematics
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If A and B are two events, then what is the probability of occurrence of either event A or event…
NDA Mathematics 2019
NDA 2019
Mathematics
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What is the probability that an interior point in a circle is closer to the centre than to the circumference?
NDA Mathematics 2019
NDA 2019
Mathematics
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If all the natural numbers between 1 and 20 are multiplied by 3, then what is the variance of the…
NDA Mathematics 2019
NDA 2019
Mathematics
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Let the correlation coefficient between X and Y be 0.6. Random variables Z and W are defined as Z =…
NDA Mathematics 2019
NDA 2019
Mathematics
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Consider the following statements: 1.The algebraic sum of deviations of a set of values from their arithmetic mean is always…
NDA Mathematics 2019
NDA 2019
Mathematics
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A and B are two events such that Ā and B̄ are mutually exclusive. If P(A) = 0.5 and P(B)…
NDA Mathematics 2019
NDA 2019