Ramu bought an old car for Rs. 42000. He spent Rs. 13000 on repairs and sold it for Rs. 66900. What is his profit percent?  Choose the correct choice from the following choices.
A) 22	B) 77	C) 18	D) 21.6	E) 88

Rationale: "total cp = rs . 42000 + rs . 13000 = rs . 55000 and sp = rs . 66900 profit ( % ) = ( 66900 - 55000 ) / 55000 * 100 = 21.6 % answer : d"
Answer: D