Multiple choice

At what rate percent per annum will a sum of Rs. 1,000 amount to Rs. 1,102.50 in 2 years at compound interest? किस दर पर प्रतिशत प्रतिवर्ष की राशि रु. 1,000 राशि से रु. चक्रवृद्धि ब्याज पर 2 वर्षों में 1,102.50?

  1. 5

  2. 5.5

  3. 6

  4. 6.5

  5. 10
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A Correct answer
Explanation

Using CI formula: A = P(1 + r/100)^t. 1102.50 = 1000(1 + r/100)². Dividing: 1.1025 = (1 + r/100)². Taking square root: 1.05 = 1 + r/100. Therefore r/100 = 0.05, so r = 5%.

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