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CI: principal from the amount

This type of question, asked 2 times: 14 Sep 2025 S1, 16 Sep 2025 S1. All 2 questions below, oldest first.

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  1. Question 1

    14 Sep 2025 S1

    60
    A certain amount invested at compound interest of 12%12\% per annum, compounded annually, amounts to ₹3,136 in 2 years. What is 140%140\% of the amount invested?

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  2. Question 2

    16 Sep 2025 S1

    59
    A sum becomes ₹12100 in 2 years at 10% Compound Interest annually. Find the principal.

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