P and Q invested in a business. The profit earned was divided in the ratio 2 : 3. If P invested Rs 30000, the amount invested by Q is  Choose one:
A) 30000	B) 50000	C) 45000	D) 20000	E) 60000

Rationale: "let the amount invested by q = q 30000 : q = 2 : 3 ⇒ 30000 × 3 = 2 q ⇒ q = ( 30000 × 3 ) / 2 = 45000 answer is c ."
Answer: C