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?
- A100
- B120
- C150Correct
- 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.
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