A candidate who scores 30% fails by 5 marks, while another who scores 40% gets 10 more

A candidate who scores 30% fails by 5 marks, while another who scores 40% gets 10 more marks than the minimum pass marks. The minimum marks required to pass are
(a) 40
(b) 50
(c) 55
(d) 65

Anurag Mishra Professor Asked on 1st April 2016 in Maths.
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  • 1 Answer(s)
    Best answer

    Answer: (b) 50 

    Solution:-
    Let the total marks be X

    According to the question,
    X x 30/100  + 5 = X x 40/100 – 10
    3 X/10 + 5 = 4 X/10 – 10
    4 X/10 – 3 X/10 = 10 + 5
    X/10 = 15
    X = 150

    Then, minimum marks = 150 x 30/100 + 5
    = 45 + 5
    = 50

    Hence, the correct answer is option (b) 50.

    Anurag Mishra Professor Answered on 1st April 2016.
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