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Day 33: CDS Maths

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

  1. Question 1

    Number System. This type asked 3 times: CDS 2 2020, CDS 2 2021, CDS 1 2026. This one: CDS 1 2026 See all 3 of this type

    23
    The HCF and LCM of two numbers p and q are 44 and 4620 respectively. When p is divided by 55, the quotient is 4 and remainder is 0. What is the value of q ?

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  2. Question 2

    Number System. This type asked 3 times: CDS 1 2019, CDS 2 2022, CDS 1 2026. This one: CDS 1 2026 See all 3 of this type

    25
    What is the LCM of 3.6, 0.009, 0.27 ?

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  3. Question 3

    Number System. This type asked 3 times: CDS 2 2024, CDS 2 2025, CDS 1 2026. This one: CDS 1 2026 See all 3 of this type

    80
    A Question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : Let XYZ be a 3-digit number and the difference between XYZ and ZYX is equal to PQR. Is (P+R)(P + R) equal to Q ? Statement-I : P=3P = 3 Statement-II : R=6R = 6 Which one of the following is correct in respect of the above Question and the Statements ?

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  4. Question 4

    Number System. This type asked 3 times: CDS 2 2019, CDS 2 2025, CDS 1 2026. This one: CDS 1 2026 See all 3 of this type

    77
    A Question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : Is (p2+q2)(p^2 + q^2) always composite number, where p and q are different prime numbers ? Statement-I : (p−q)(p - q) is an odd integer Statement-II : (p+q)(p + q) is an odd integer Which one of the following is correct in respect of the above Question and the Statements ?

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  5. Question 5

    Percentage, Profit and Loss. This type asked 3 times: CDS 2 2017, CDS 1 2021, CDS 1 2026. This one: CDS 1 2026 See all 3 of this type

    33
    A single discount which is equivalent to a series of discounts p%p\%, p2%\frac{p}{2}\%, p4%\frac{p}{4}\% is 31.6%. What is the value of p ?

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