An engineering student has to secure 15% marks to pass. He gets 55 marks and fails by 20 marks. Find the maximum marks.

Correct answer: 500

Solution

He fails by 20 marks, so the pass mark is 55 + 20 = 75. Since 75 is 15% of the total, the maximum marks are 75 ÷ 0.15 = 500.

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