PYQ Vault

Day 225: CDS Maths

5 questions. Try each one first, then open its answer.

  1. Question 1

    Quadrilaterals. Asked once: CDS 2 2026

    62
    A Question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : The diagonal of a rectangle ABCD (AB > BC) is 525\sqrt{2} cm. What is its perimeter ? Statement I : Length AB is an integer. Statement II : Length BC is an integer. Which one of the following is correct in respect of the above Question and Statements ?

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  2. Question 2

    Ratio, Proportion and Variation. Asked once: CDS 2 2026

    29
    A variable y is directly proportional to a variable quantity xnx^n. Given that when x = 2, y = 20.8 and when x = 3, y = 105.3. Which one of the following is the constant of proportionality if it is greater than 1 ?

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  3. Question 3

    Sequence and Series. Asked once: CDS 1 2025

    42
    What is the maximum value of the sum of the numbers 36, 33, 30, 27, 24, ... ?

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  4. Question 4

    Sets. Asked once: CDS 2 2026

    31
    Consider the following statements : I. The set of all birds living on the Earth is an infinite set. II. The set of all real numbers between 0 and 10 is a finite set. Which of the statements given above is/are correct ?

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  5. Question 5

    Simple and Compound Interest. Asked once: CDS 2 2024

    81
    Three amounts xx, yy, zz are such that yy is the compound interest on xx; and zz is the compound interest on yy. The rate of interest per annum and the time period in years are same. Which one of the following is correct ?

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