There is 50% increase in an amount in 6 years at S.I. What will be the C.I. of Rs. 12,000 after 3 years at the same rate?
Choose the correct option:
A) 2160
B) 3120
C) 17988
D) 6240
E) 5240
Let P = Rs. 100. Then, S.I. Rs. 50 and T = 6 years.   R = (100 * 50)/(100 * 6) = 10% p.a.   Now, P = Rs. 12000, T = 3 years and R = 8.33% p.a.   C.I. = [12000 * {(1 + 8.33/100)3 - 1}]   = Rs. 17988   ANSWER:17988
<result>C</result>
There is 50% increase in an amount in 6 years at S.I. What will be the C.I. of Rs. 12,000 after 3 years at the same rate?