The banker's discount on Rs. 1600 at 15% per annum is the same as true discount on Rs. 1680 for the same time and at the same rate. The time is:

Question

Accepted Answer

S.I. on Rs. 1600 = T.D. on Rs. 1680. ∴ Rs. 1600 is the P.W. of Rs. 1680, i.e., Rs. 80 is on Rs. 1600 at 15%. ∴ Time = ❨ …

∴ Time =	❨	100 x 80	❩year	=	1	year = 4 months.
		1600 x 15			3

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