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| 1. |
The difference between compound interest and simple interest on an amount of Rs. 15,000 for 2 years is Rs. 96. What is the rate of interest per annum? |
| Answer» 15000 x 1 + R 2 - 15000 - 15000 x R x 2 = 96 100 100 15000 1 + R 2 - 1 - 2R = 96 100 100 15000 (100 + R)2 - 10000 - (200 x R) = 96 10000 R2 = 96 x 2 = 64 3 R = 8. Rate = 8%. | |