An engineering student has to secure 36% marks to pass. He gets 130 marks and fails by 14 marks. The maximum No. of marks obtained by him is_________?
Correct answer: B. 400
- A. 300
- B. 400
- C. 350
- D. 500
Explanation
The student fails by 14 marks after scoring 130 marks, so the passing score is 130 + 14 = 144 marks. Since 144 marks represent 36% of the maximum, maximum marks = 144 / 0.36 = 400 marks. The likely mistake is using 130 marks as the passing score and selecting 350 marks.
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About Percentages
Percentages express a quantity as parts per hundred and support calculations involving increases, decreases, discounts, commissions, taxes, and successive changes. Questions require distinguishing percentage change from percentage points and identifying the original value when a final value and its percentage change are given.
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