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In what time will the simple interest be 2/5 of the principal at 8 percent per annum?
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- 8 years
- 7 years
- 5 years
- 6 years
- 8 years
Correct Option: C
Let the principal be p.
| ∴ Simple Interest = | p | |
| 5 |
Rate = 8% per annum
| ∴ Time = | |
| Principal × Rate |
| Time = | = | = 5 years | ||
| p × 8 | 8 |
Second method to solve this question :
| Here, n = | and R = 8% | |
| 5 |
⇒ RT = (n × 100)
| T = | |
| R |
| T = | × | ||
| 5 | 8 |
T = 5 years
