a man invested rs . 50000 at the rate of 5 % p . a . for the first 3 years , 8 % p . a . for the next 5 years and 10 % p . a . for the period beyond 8 years . at the end of 11 years , he want to distribute total money among his 4 sons , how much money will each son get ?
Options
A) 30000 B) 25375 C) 28680 D) 32000 E) 23125

Rationale: let the interest be i . then , ( 50000 × 3 × 5 / 100 ) + ( 50000 × 5 × 8 / 100 ) + ( 50000 × 3 × 10 / 100 ) = i ⇒ 7500 + 20000 + 15000 = i ⇒ i = 42500 total money = 42500 + 50000 = 92500 each son will get = 92500 / 4 = 23125 answer : e
Answer: E