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1. |
If the annual rate of simple interest increases from 9% to \(13\frac{1}{2} %\)%, then the yearly interest increases by Rs. 3,690. What is the principal (in Rs.) ? |
A. | 85,000 |
B. | 80,000 |
C. | 82,000 |
D. | 88,000 |
Answer» D. 88,000 | |