Question Library
Browse our collection of questions across various subjects
Mathematics
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There are 4 letters and 4 directed envelopes. These 4 letters are randomly inserted into the 4 envelopes. What is…
NDA Mathematics 2011
NDA 2011
Mathematics
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The number 10101111 in binary system is represented in decimal system by which one of the following numbers ?
NDA Mathematics 2011
NDA 2011
Mathematics
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What is the locus of the point which is at a distance 8 units to the left of y-axis ?
NDA Mathematics 2011
NDA 2011
Mathematics
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Let M be the set of men and R is a relation ‘is son of’ defined on M. Then R…
NDA Mathematics 2011
NDA 2011
Mathematics
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What is the modulus of (1 / (1+3i)) – (1 / (1-3i)) ?
NDA Mathematics 2011
NDA 2011
Mathematics
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If ω is the imaginary cube root of unity, then what is (2 – ω + 2ω²)²⁷ equal to ?
NDA Mathematics 2011
NDA 2011
Mathematics
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If one root of the equation ax² + bx + c = 0, a ≠ 0 is reciprocal of the…
NDA Mathematics 2011
NDA 2011
Mathematics
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If sum of squares of the roots of the equation x² + kx – b = 0 is 2b, what…
NDA Mathematics 2011
NDA 2011
Mathematics
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Which one of the following statements is correct ?
NDA Mathematics 2011
NDA 2011
Mathematics
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What is the projection of the vector i – 2j + k on the vector 4i – 4j + 7k…
NDA Mathematics 2011
NDA 2011
Mathematics
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The vector a lies in the plane of vectors b and c. Which one of the following is correct ?
NDA Mathematics 2011
NDA 2011
Mathematics
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A, B, C, D and E are coplanar points and three of them lie in a straight line. What is…
NDA Mathematics 2011
NDA 2011
Mathematics
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If P, Q, R are three non-collinear points, then what is PQ ∩ PR equal to?
NDA Mathematics 2011
NDA 2011
Mathematics
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A man standing on the bank of a river observes that the angle of elevation of the top of a…
NDA Mathematics 2011
NDA 2011
Mathematics
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If an angle α is divided into two parts A and B such that A – B = x and…
NDA Mathematics 2011
NDA 2011
Mathematics
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Using the digits 1, 2, 3, 4 and 5 only once, how many numbers greater than 41000 can be formed?
NDA Mathematics 2011
NDA 2011
Mathematics
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If A = [3 1; 0 4] and B = [1 1; 0 2], then which of the following is/are…
NDA Mathematics 2011
NDA 2011
Mathematics
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If (a, 0), (0, b), (1, 1) are collinear, what is (a + b – ab) equal to ?
NDA Mathematics 2011
NDA 2011
Mathematics
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Two straight lines x – 3y – 2 = 0 and 2x – 6y – 6 = 0
NDA Mathematics 2011
NDA 2011
Mathematics
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If 3 is the root of the equation x² – 8x + k = 0, then what is the value…
NDA Mathematics 2011
NDA 2011