P and Q invested in a business. The profit earned was divided in the ratio 4 : 6. If P invested Rs 60000, the amount invested by Q is	Choose the correct choice from the following answers:  A) 30000  B) 50000  C) 90000  D) 20000  E) 60000

Rationale: "let the amount invested by q = q 60000 : q = 4 : 6 ⇒ 60000 × 6 = 4 q ⇒ q = ( 60000 × 6 ) / 4 = 90000 answer is c ."
Answer: C