P and Q started a business investing Rs. 54,000 and Rs. 36,000 respectively. Out of a total profit of Rs. 18,000, Q's share is :  Choices.
A) 5980
B) 5990
C) 6000
D) 6010
E) 6020

Rationale: "ratio of their shares = 54000 : 27000 = 6 : 3 . q ’ s share = rs . 18000 * 3 / 9 = rs . 6000 answer : c"
Answer: C