1.  The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs. 24. The present worth is:
A. Rs. 480
B. Rs. 520
C. Rs. 600
D. Rs. 960

Answer: Option C

Explanation:

T.D. = B.G. x 100 = Rs. 24 x 100
Rate x Time 10 x 2

        = Rs. 120.

P.W. = 100 x T.D. = Rs. 100 x 120
Rate x Time 10 x 2

        = Rs. 600.