MCQOPTIONS
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				| 1. | 
                                    A sum of money invested at compound interest amounts to Rs. 800 in 3 years and to Rs. 840 in 4 years. The rate of interest per annum is | 
                            
| A. | 2(1/2)% | 
| B. | 4% | 
| C. | 5% | 
| D. | 6(2/3)% | 
| Answer» D. 6(2/3)% | |