There is 60% increase in an amount in 6years at SI. What will be the CI of Rs. 13,000 after 3 years at the same rate? Choose the correct choice from the following answers:  A) 2372  B) 2572  C) 4303  D) 2343  E) 3972

Rationale: let p = rs . 100 . then , s . i . rs . 60 and t = 6 years . r = 100 x 60 = 10 % p . a . 100 x 6 now , p = rs . 13000 . t = 3 years and r = 10 % p . a . c . i . = rs . 13000 x 1 + 10 3 - 1 100 = rs . 13000 x 331 1000 = 4303 . c
Answer: C