MCQOPTIONS
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| 1. |
The rate of simple interest per annum to be taken, so that an amount becomes four times to its principal in 21 years is: |
| A. | \(14\frac{4}{7}\)% |
| B. | \(14\frac{3}{7}\)% |
| C. | \(14\frac{2}{7}\)% |
| D. | \(14\frac{1}{7}\)% |
| Answer» D. \(14\frac{1}{7}\)% | |