A student has to obtain 30% of the total marks to pass. He got 150 marks and failed by 30 marks. The maximum marks are?
Pick
A) 750
B) 600
C) 650
D) 550
E) 500

Rationale: "let the maximum marks be x then , 30 % of x = 150 + 30 30 x / 100 = 180 30 x = 180 * 100 = 18000 x = 600 answer is b"
Answer: B