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Rs 9000 becomes Rs 18000 at SI in 8 years . Find the rate of interest . |
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Answer» Principal = Rs. 9000 Amount = Rs. 18000 Time = 8 years S.I = A - P = 18000 - 9000 = 9000 S.I = (P × R × T)/100 9000 = (9000 x R x 8)/ 100 9000 x 100 = 72000 x R 900000 = 72000 x R 900000/ 72000 = R 25/2 = R R = 12.5 % |
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