find the amount and the compound interest on rs 12800 for one year at 7 1by2 per annum compounded semiannually
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We know that A = P(1+r/100)^n
= 12800(1+15/100*4)^2
= 12800 * 83/80 * 83/80
= 13778
C.I = Amount - Principal
= 13778 - 12800
= 978.
= 12800(1+15/100*4)^2
= 12800 * 83/80 * 83/80
= 13778
C.I = Amount - Principal
= 13778 - 12800
= 978.
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