PYQ Vault

Day 71: CDS Maths

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

  1. Question 1

    Percentage, Profit and Loss. This type asked 2 times: CDS 1 2017, CDS 2 2024. This one: CDS 2 2024 See all 2 of this type

    71
    The total population of an area is 10,000 out of which males and females are equal in number. Out of the total population 30% are Newspaper readers. Out of the total newspaper readers, one-third read English Newspaper. Out of the total English Newspaper readers, 20% are females. What is the number of males who do not read English Newspaper ?

    Tap an option to check your answer.

  2. Question 2

    Polynomials. This type asked 2 times: CDS 1 2024, CDS 2 2024. This one: CDS 2 2024 See all 2 of this type

    47
    Let kk be a positive integer. What is the quotient when x8k+3+x8k+6+x8k+9+x8k+12x^{8k+3} + x^{8k+6} + x^{8k+9} + x^{8k+12} is divided by (1+x3)(1+x6)(1 + x^3)(1 + x^6) ?

    Tap an option to check your answer.

  3. Question 3

    Sequence and Series. This type asked 2 times: CDS 1 2024, CDS 2 2024. This one: CDS 2 2024 See all 2 of this type

    22
    What is the geometric mean of 3, 9, 27, 81, 243, 729, 2187 ?

    Tap an option to check your answer.

  4. Question 4

    Time and Work. This type asked 2 times: CDS 2 2023, CDS 2 2024. This one: CDS 2 2024 See all 2 of this type

    62
    A question is given followed by two statements I and II. Consider the Question and the Statements and mark the correct option. Question : In how many days can AA, BB and CC together finish the work ? Statement-I : AA and BB together can finish the work in 24 days Statement-II : BB and CC together can finish the work in 36 days Which one of the following is correct in respect of the above Question and the Statements ?

    Tap an option to check your answer.

  5. Question 5

    Triangles. This type asked 2 times: CDS 1 2023, CDS 2 2024. This one: CDS 2 2024 See all 2 of this type

    32
    If pp, qq and rr are the lengths (in cm) of the sides of a right-angled triangle, then (p−q−r)(q−r−p)(r−p−q)(p - q - r)(q - r - p)(r - p - q) is always

    Tap an option to check your answer.