The simple interest is Rs. 1 less than the compound interest on a certain principal for a period of 2 years at 10\% interest. Find the principal. - Quantitative Aptitude MCQ UP Police Constable 2026 | ExamTest.live

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The simple interest is Rs. 1 less than the compound interest on a certain principal for a period of 2 years at 10% interest. Find the principal.

Solution & Step-by-step Explanation

1. The difference between compound interest (CI) and simple interest (SI) for a period of 2 years is given by the formula: CI - SI = P (\frac{R}{100})^{2} 2. Given that CI - SI = Rs. 1 and R = 10% : 1 = P (\frac{10}{100})^{2} 1 = P (\frac{1}{10})^{2} 1 = \frac{P}{100} ⟹ P = Rs. 100

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The simple interest is Rs. 1 less than the compound interest on a certain principal for a period of 2 years at 10% interest. Find the principal.

Rs. 100

Rs. 110

Rs. 95

Rs. 90

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