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:
[A].3 months
4 months
6 months
8 months
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:
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
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 x 80 | year | = | 1 | year = 4 months. | |
| 1600 x 15 | 3 |