11. 

The true discount on a bill of Rs. 540 is Rs. 90. The banker's discount is:

A. Rs. 60
B. रुपये। 108
C. रुपये। 110
D. रुपये। 112

12. 

The banker's discount on a certain sum due 2 years hence is 11 of the true discount.
10

The rate percent is:

A. 11%
B. 10%
C. 5%
D. 5.5%