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
Pick one:	A) 3 months	B) 4 months	C) 6 months	D) 8 months	E) 10 months
Solution   S.I on Rs. 1600 = T.D on Rs. 1680.   Rs.1600 is the P.W of Rs.1680.   Rs.80 is S.I on Rs.1600 at 15%.   Time	= (100x80 / 600x15)   = 1/3 year   = 4 months.   Answer 4 months
<result>B</result>
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