The banker's discount on Rs. 1600 at 15% per annum is the same as tru…

Question

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:

Accepted Answer

Option B. 4 months. Answer & Solution Answer: Option B Solution: & 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 = ( 100 × 801600 × 15 ) year & = 1/3 year = 4\, months .