If shares of two persons in profits are Rs.600 and Rs.1000 then ratio of their capitals is  Choose the correct choice from the following answers.
A) 3 : 5
B) 2 : 3
C) 4 : 3
D) 1 : 3
E) 1 : 2

Rationale: "profit = time * capital so 600 : 1000 = 3 : 5 answer : a"
Answer: A