Question Library
Browse our collection of questions across various subjects
Mathematics
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ABCD is a parallelogram with AB and AD as adjacent sides. If ∠A = 60° and AB = 2AD, then…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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There are 437 fruit plants in an orchard planted in rows. The distance between any two adjacent rows is 2…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A boy is cycling such that the wheels of the cycle are making 140 revolutions per minute. If the radius…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A square and an equilateral triangle have equal perimeter. If the diagonal of the square is 12√2 cm, then the…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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The speeds of three buses are in the ratio 2 : 3 : 4. The time taken by these buses…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A hollow cylindrical drum has internal diameter of 30 cm and a height of 1 m. What is the maximum…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A pipe with square cross-section is supplying water to a cistern which was initially empty. The area of cross-section is…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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Consider all positive two digit numbers each of which when divided by 7 leaves a remainder 3. What is their…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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In an election 10% of the voters on the voter list did not cast their vote and 60 voters cast…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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In a race of 100 m, A beats B by 4 m and A beats C by 2 m. By…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A number consists of two digits, whose sum is 7. If the digits are reversed, the number is increased by…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A’s salary was increased by 40% and then decreased by 20%. On the whole A’s salary is increased by
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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If tanθ + secθ = 2, then tanθ is equal to
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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A pole is standing erect on the ground which is horizontal. The tip of the pole is tied tight with…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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An aeroplane flying at a height of 3000 m passes vertically above another aeroplane at an instant when the angles…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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If a and b are positive, then the relation sinθ = (2a + 3b)/(3b) is
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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Consider the following statements: 1. sin66° is less than cos66° 2. sin26° is less than cos26° Which of the above…
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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If θ is an acute angle and sinθcosθ = 2cos³θ – 1 – 5cosθ, then what is sinθ equal to?
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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If tan(x + 40°)tan(x + 20°)tan(3x)tan(70° – x)tan(50° – x) = 1, then the value of x is equal to
CDS Elementary Mathematics 2015
CDS 2015
Mathematics
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cosθ / (1 – sinθ) is equal to (where θ ≠ π/2)
CDS Elementary Mathematics 2015
CDS 2015