A, B and C invested Rs.6300, Rs.4200 and Rs.10500 respectively, in a partnership business. Find the share of A in profit of Rs.12700 after a year? Pick one:  A) 3630  B) 9232  C) 8828  D) 2387  E) 3810

Rationale: "6300 : 4200 : 10500 3 : 2 : 5 3 / 10 * 12700 = 3810 answer : e"
Answer: E