Question Library
Browse our collection of questions across various subjects
Mathematics
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Leela got married 6 years ago. Today her age is 1¼ times her age at the time of her marriage.…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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A sum of ₹8400 was taken as a loan. This is to be paid in two equal instalments. If the…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What number must be subtracted from both the numerator and the denominator of the fraction 27/35 so that it becomes…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If 15 men take 21 days of 8 hours each to do a piece of work, then what is the…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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In a 100 m race, A runs at a speed of 5/3 m/s. If A gives a start of 4…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The cost of a diamond varies directly as the square of its weight. A diamond broke into four pieces with…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The number of prime numbers which are less than 100 is
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The pair of linear equations kx + 3y + 1 = 0 and 2x + y + 3 = 0…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If 9ˣ 3ʸ = 2187 and 23ˣ 2ʸ − 4ʸ = 0, then what can be the value of (x…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If a³ = 335 + b³ and a = 5 + b, then what is the value of a +…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If α and β are the roots of the equation x² + px + q = 0, then what is…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What is the solution of the equation x log₁₀(10/3) + log₁₀ 3 = log₁₀(2 + 3ˣ) + x?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If √x/√y = 24/5 + √y/√x and x + y = 26, then what is the value of xy?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If x = 2 + 2^(2/3) + 2^(1/3), then what is the value of x³ − 6x² + 6x?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If A = {x : x is a multiple of 7},B = {x : x is a multiple of 5},C…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If A : B = 3 : 4, then what is the value of the expression (3A² + 4B²)/(3A −…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If x = t⁻¹ and y = t⁻¹, t > 0, t ≠ 1, then what is the relation between…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What is the value of (443 + 547)² + (443 − 547)² / (443 × 443 + 547 × 547)?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If x = (√a + √b − √a − √b) / (√a + √b + √a − √b), then what…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What is the remainder when the number (4444)^4444 is divided by 9?
CDS Elementary Mathematics 2017
CDS 2017