Write the number of years in which the amount becomes twice of the principal having the rate of simple interest 61/4\% per annum. - Quantitative Aptitude MCQ Competitive Exams 2026 | ExamTest.live

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1 mark

Write the number of years in which the amount becomes twice of the principal having the rate of simple interest 6 \frac{1}{4} % per annum.

Solution & Step-by-step Explanation

Let the principal be P . Since the amount becomes twice, A = 2 P . Simple Interest (SI) = A - P = 2 P - P = P Rate of interest (R) = 6 \frac{1}{4} % = \frac{25}{4} % p.a. Using the Simple Interest formula: SI = \frac{P \times R \times T}{100} P = \frac{P \times \frac{25}{4} \times T}{100} 1 = \frac{25 \times T}{400} T = \frac{400}{25} = 16 years

Try it yourself before checking the explanation above.

Write the number of years in which the amount becomes twice of the principal having the rate of simple interest 6 \frac{1}{4} % per annum.

15

12

18

16

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