If Tim had lunch at $50.20 and he gave 20% tip, how much did he spend?
Choose one: A) $ 30.60 B) $ 60.60 C) $ 70.60 D) $ 40.60 E) $ 60.24

Rationale: "the tip is 20 % of what he paid for lunch . hence tip = 20 % of 50.20 = ( 20 / 100 ) * 50.20 = $ 10.04 total spent 50.20 + 10.04 = $ 60.24 correct answer e"
Answer: E