Question Library
Browse our collection of questions across various subjects
Mathematics
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If x = 2^(1/3) + 2^(1/3), then the value of 2x³ – 6x – 5 is equal to
CDS Elementary Mathematics 2016
CDS 2016
Mathematics
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If the equations x² – px + q = 0 and x² + qx – p = 0 have a…
CDS Elementary Mathematics 2016
CDS 2016
Mathematics
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If a² – by – cz = 0, ax – b² + cz = 0 and ax + by –…
CDS Elementary Mathematics 2016
CDS 2016
Mathematics
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If p/x + q = m and q/x + p = n, then what is x/y equal to?
CDS Elementary Mathematics 2016
CDS 2016
Mathematics
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If √(3x² – 7x – 30) – √(2x² – 7x – 5) = x – 5 has α and β…
CDS Elementary Mathematics 2016
CDS 2016
Mathematics
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If the roots of the equation lx² + mx + m = 0 are in the ratio p : q,…
CDS Elementary Mathematics 2016
CDS 2016
Mathematics
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The average height of 22 students of a class is 140 cm and the average height of 28 students of…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The heights (in cm) of 5 students are 150, 165, 161, 144 and 155. What are the values of mean…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The total number of live births in a specific locality during different months of a specific year was obtained from…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The geometric mean of x and y is 6 and the geometric mean of x, y and z is also…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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Which one of the following is not correct? The proportion of various items in a pie diagram is proportional to…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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Consider the following statements: Statement I: The value of a random variable having the highest frequency is mode. Statement II:…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The pie diagrams on the monthly expenditure of two families A and B are drawn with radii of two circles…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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A man travelled 12 km at a speed of 4 km/hr and further 10 km at a speed of 5…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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A small company pays each of its 5 category ‘C’ workers ₹ 20,000, each of its 3 category ‘B’ workers…
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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Frequency density of a class is computed by the ratio
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What is the ratio of the total number of boys to the total number of girls?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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What is the difference between the number of boys studying Mathematics and the number of girls studying Physics?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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In which subjects is the difference between the number of boys and girls equal?
CDS Elementary Mathematics 2017
CDS 2017
Mathematics
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The number of girls studying Statistics is what percent (approximate) of the total number of students studying Chemistry?
CDS Elementary Mathematics 2017
CDS 2017