PYQ Vault

Equal SI on two sums: unknown time, rate or ratio of sums

This type of question, asked 5 times: 14 Jul 2023 S1, 24 Jul 2023 S2, 17 Sep 2024 S1, 26 Sep 2024 S3, 21 Sep 2025 S3. All 5 questions below, oldest first.

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  1. Question 1

    14 Jul 2023 S1

    66
    In what time will ₹10,000 at 4% per annum, produce the same interest as ₹8,000 does in 4 years at 5% simple interest?

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  2. Question 2

    24 Jul 2023 S2

    60
    The simple interest on ₹800 for 6 years at 5.5% per annum is equal to the simple interest on ₹600 at 4% per annum for a certain period of time. The period of time is:

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  3. Question 3

    17 Sep 2024 S1

    59
    If the simple interest on ₹7,200 in 3 years at the rate of 16% per annum equals the simple interest on ₹9,600 at the rate of x% per annum in 4 years. The value of x is equal to:

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  4. Question 4

    26 Sep 2024 S3

    55
    In how much time will ₹5,000 at 4%4\% per annum simple interest produce the same interest as ₹8,000 in 2122\frac{1}{2} years at 8%8\% per annum simple interest?

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  5. Question 5

    21 Sep 2025 S3

    53
    If the simple interest on a sum of Rs. A at 6% per annum for 2 years is equal to the simple interest on Rs. B at 4% per annum for 3 years, then what is the ratio of A to B?

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