UPSC Prelims 2018·CSAT·Quantitative Aptitude·Arithmetic

A student has to get 40% marks to pass in an examination. Suppose he gets 30 marks and fails by 30 marks, then what are the maximum marks in the examination?

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Last updated 23 May 2026, 3:31 pm IST
  1. A100
  2. B120
  3. C150Correct
  4. D300

Explanation

The student scored 30 marks and failed by 30 marks, meaning the passing marks are 30 + 30 = 60 marks. These 60 marks represent 40% of the maximum marks. To find the maximum marks (M), we set up the equation: 40% of M = 60. (40/100) * M = 60 0.4 * M = 60 M = 60 / 0.4 M = 150 Analyzing the options: A) 100: 40% of 100 is 40. Incorrect. B) 120: 40% of 120 is 48. Incorrect. C) 150: 40% of 150 is 60. This matches the calculated passing marks. Correct. D) 300: 40% of 300 is 120. Incorrect. The final answer is C.
Quantitative Aptitude: A student has to get 40% marks to pass in an examination. Suppose he gets 30 marks and fails by 30 marks, then what are

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