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The difference between the simple interest and true discount on a certain sum of money for 6 months at 12% per annum is Rs. 25. Find the sum. |
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Answer» Let the sum be Rs. x. Then, T.D. = (x*25/2*1/2)/(100+(25/2*1/2)) = x*25/4*4/425 = x/17 S.I = x*25/2*1/2*1/100 = x/16 x/16-x/17=25 =>17x-16x=25*16*17 =>x=6800 Hence, sum due = Rs. 6800. |
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