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The simple interest on a sum after 4 years is 1/5 of the sum. The rate of interest per annum is
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- 4%
- 5%
- 6%
- 8%
- 4%
Correct Option: B
Let Principal = ₹100
| S.I. = 100 × | = ₹ 20 | |
| 5 |
| Rate = | = 5% | |
| 100 × 4 |
Second method to solve this question :
| Here, T = 4 years , n = | ||
| 5 |
| Here, n = | T = 4 years, | |
| 5 |
| R = | |
| T |
| R = | × | ||
| 5 | 4 |
R = 5%
