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A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 yeaRs. The sum is:

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A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 yeaRs. The sum is:
1). 650
2). 690
3). 658
4). 698


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Answered by on | Votes 3 |

As sum of money amounts to Rs. 815 in 3 years and Rs. 854 in 4 years

So,

S.I. for 1 year = Rs. 854 – 815 = Rs. 39

S.I. for 3 years = Rs. 39 x 3 = Rs. 117

Principal = Amount – S.I. (we are considering the case for 3 years)

Principal = Rs. (815 - 117) = Rs. 698

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