MCQ
Simple interest on a certain amount is $\frac{9}{16}$ of the principal. If the numbers representing the rate of interest (in per cent) and time (in years) be equal, then the time for which the principal is lent out, is:
- ✓5 years
- B6 years
- C$6 \frac{1}{2}$ years
- D$7 \frac{1}{2}$ years