Multiple choice

At what rate of compound interest per annum will a sum of Rs. 1200 become Rs.1348.32 in 2 years? किस दर से 1200 रू. चक्रवृद्धि ब्याज की दर से 2 वर्षो में 1348.32 रू. हो जाएगा ?

  1. 6%

  2. 6.5%

  3. 7%

  4. 7.5%

  5. 8%
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A Correct answer
Explanation

Using compound interest formula: A = P(1 + r/100)^n. Here A = 1348.32, P = 1200, n = 2. So 1200(1 + r/100)^2 = 1348.32. Dividing: (1 + r/100)^2 = 1348.32/1200 = 1.1236. Taking square root: 1 + r/100 = √1.1236 = 1.06. Therefore r = 6%.

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