A sum of money at simple interest amounts to Rs. 415 in 2 years and to Rs. 514 in 4 years. The sum is ? Choose the correct choice from the following answers:
A) Rs. 316  B) Rs. 251  C) Rs. 154  D) Rs. 294  E) Rs. 200
Explanation:   S.I. for 2 years = (514 - 415) = Rs. 99   S.I. for 1 year = 99/2   Principal = (415 - 99) = Rs. 316.   Rs. 316NSWER IS Rs. 316
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A sum of money at simple interest amounts to Rs. 415 in 2 years and to Rs. 514 in 4 years. The sum is ?