By Ajay Kumar

Verified by Ajay Kumar

Ravi scores 40% marks and fails by 30 marks. Sohan scores 50% marks and gets 20 marks more than the pass marks. Find the maximum marks of the exam.

  1. 400

  2. 450

  3. 500

  4. 550

Answer: C

Solution

Let maximum marks be x and passing marks be p. \(0.4x=p-30\) and \(0.5x=p+20\). Subtracting the equations gives \(0.1x=50\). Therefore, \(x=\frac{50}{0.1}=500\). Trick: The difference in percentages is 10%, and the difference in marks is \(30+20=50\). Hence, maximum marks = \(\frac{50\times100}{10}=500\).

Community answers

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  1. Option C500

    C

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