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					 The simple interest on a sum for 5 years is one fourth of the sum. The rate of interest per annum is
 
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-  5%
 -  6%
 -  4%
 - 8%
 
 -  5%
 
Correct Option: A
As per the given in question , 
| = | ||
| Principal | 4 | 
| ∴ Rate = | |
| Principal × Time | 
| = | = 5% per annum | |
| 4 × 5 | 
Second method to solve this question :
| Here, n = | , T = 5 years, | |
| 4 | 
| R = | |
| T | 
| R = | × | ||
| 4 | 5 | 
R = 5%