Shortcut Trick
Difference in percentage = 40% − 25% = 15%
Difference in marks = 28 − (−32) = 60 marks
15% of total marks → 60 marks
1% of total marks → 4 marks
Required 72% marks = 72 × 4 = 288
∴ The correct answer is 288.
Alternate Method
Given:
Candidate 1: 25% score, fails by 32 marks.
Candidate 2: 40% score, 28 marks more than passing.
Formula Used:
Pass Marks = (Score% × Maximum Marks) + Marks needed to pass
Pass Marks = (Score% × Maximum Marks) − Extra marks over passing
Calculations:
⇒ Let Maximum Marks be M.
⇒ Passing Marks = 25% of M + 32
⇒ Passing Marks = 40% of M − 28
⇒ 40% of M − 25% of M = 32 + 28
⇒ 15% of M = 60
⇒ M = (60 ÷ 15) × 100
⇒ M = 4 × 100 = 400
⇒ Marks scored at 72% = 72% of 400
⇒ Marks = 0.72 × 400 = 288
Checking the result against the options, we identify that the value corresponds to Option (3).
∴ The correct answer is 288.
Additional Information
Passing Percentage Calculation
Passing Percentage = (Passing Marks ÷ Maximum Marks) × 100. In this case, Passing Marks = (0.25 × 400) + 32 = 132. Passing % = (132 ÷ 400) × 100 = 33%.
Percentage Difference Principle
When one score is below and another is above a reference point, the total numerical difference is the sum of their individual deviations from that point.
Base Value Formula
Maximum Marks = (Difference in Marks ÷ Difference in Percentage) × 100.