Question
A sum of money a simple interest amount to Rs. 815 in 3 years and to Rs. 854 in 4 years . The sum is :
Answer: Option C
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S.I. for 1 year = Rs. ( 854 - 815) = Rs. 39
S.I. for 3 years = Rs. (39 x 3) = Rs. 117
`:.` principal = Rs. (815 - 117) = 698.
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