If simple interest on a certain sum of money for 8 years at 4% per annum is same as the simple interest on Rs. 560 for 8 years at the rate of 12% per annum then the sum of money is  Choose the correct choice from the following:  A) Rs.1820  B) Rs.1040  C) Rs.1120  D) Rs.1680  E) None of these
Explanation:   Let the sum of money be x   then   (x × 4 × 8)/100 = (560 × 12 × 8)/100   x × 4 × 8 = 560 × 12 × 8   x × 4 = 560 × 12x = 560 × 3 = 1680   Answer: Option Rs.1680
<result>D</result>
If simple interest on a certain sum of money for 8 years at 4% per annum is same as the simple interest on Rs. 560 for 8 years at the rate of 12% per annum then the sum of money is