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)/ A man borrowed4000 at a certain rate of interest and1050 as interest in 3 years. Find the two rates at which he l5000 at 2% lower thanIn all, he paidthe money. |
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Answer» suppose 4000 at rate of x so rate for 5000 is x-2 both are for 3 years total interest is 1050 (4000×x×3)/100 + (5000(x+2)3)/100 = 1050 120x + 150x + 300 = 1050 270x = 750 x = 27/75 = 9/25 = 0.36% and second rate is 2.36% |
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