Question Library
Browse our collection of questions across various subjects
Mathematics
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If sin θ = (m² – n²)/(m² + n²) and 0 < θ < π/2, then what is the value…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If 0 < x < π/2, then (sin x + cosec x) is
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If a triangle has sides 5, 13 and 12 units and θ is the acute angle of the triangle, then…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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A man rows 18 km downstream in 4 hours and returns in 10 hours. Which statements are correct? 1.Speed against…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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When prices rise by 12%, what % consumption reduction keeps expenditure same?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The difference between compound and simple interest for 2 years at 5% on a sum is ₹15. What is the…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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There are 350 boys in the first three standards. Ratio of boys in first and second = 2:3. Second and…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If 78 is divided into 3 parts which are proportional to 1, 1/3, 1/6, then the middle part is
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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A boy went to school at 12 km/hr and returned at 8 km/hr. If whole journey took 50 minutes, what…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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A tap can fill a tub in 10 hours. After 5 hours, a leak was discovered. It took 7 more…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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4 goats or 6 sheep can graze a field in 50 days. 2 goats and 3 sheep will graze it…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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30 men can complete a job in 40 days. After 24 days, some men left the job. Remaining men took…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If log₁₀6 = 0.7782 and log₁₀8 = 0.9031, then what is the value of log₁₀(8000) + log₁₀(600)?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What is (x – y)(y – z)( z – x)/(X – y)^3 + (y – z)^3 + (z – x)^3…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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35% students failed in Hindi, 45% in English and 20% in both. What is the percentage of students passing in…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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If ab + bc + ca = 0 then the value of a^2/a^2 – bc + b^2/b^2 – ca +…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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Which one of the following is a correct statement?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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Ram buys 4 chairs and 9 stools for ₹1,340. He sells chairs at 10% profit and stools at 20% profit…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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Five years ago, Ram was three times as old as Shyam. Four years from now, Ram will be only twice…
CDS Elementary Mathematics 2017
CDS 2017