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					 Simple interest on a certain sum for 6 years is 9/25 of the sum. The rate of interest is
 
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- 6%
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6 1 % 2  - 8%
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8 1 % 2  
 
Correct Option: A
According to question , 
| = | ||
| Principal | 25 | 
| Rate = | |
| Principal × Time | 
| Rate = | × | = 6%´per annum | ||
| 25 | 6 | 
Second method to solve this question :
| Here, T = 6 years , n = | ||
| 25 | 
| Here, n = | T = 6 years, | |
| 25 | 
| R = | |
| T | 
| R = | × | ||
| 25 | 6 | 
R = 6%