If A lends Rs. 3500 to B at 10% p.a. and B lends the same sum to C at 11.5% p.a., then the gain of B (in
Rs.) in a period of 3 years is  Choose the correct choice from the following answers:
A) Rs. 154.50
B) Rs. 155.50
C) Rs. 156.50
D) Rs. 157.50
E) None of these
Explanation:   We need to calculate the profit of B.   It will be,   SI on the rate B lends - SI on the rate B gets   Gain of B=157.50=3500×11.5×3100−3500×10×3100   Answer: Rs. 157.50
<result>D</result>
If A lends Rs. 3500 to B at 10% p.a. and B lends the same sum to C at 11.5% p.a., then the gain of B (in
Rs.) in a period of 3 years is