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Question

A candidate scored 25% marks and failed by 30 marks and another candidate scored 50% marks and got 20 marks more than the minimum marks required to pass. Find the maximum marks and the passing mark.

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Solution

Let x and y be the passing marks and maximum marks respectively.
Therefore,
25100y=x30
y4=x30
x=y4+30.....(1)
Also,
50100y=x+20
y2=x+20
y2=y4+30+20(From (1))
y2y4=50
y2=50
y=50×2=100
Substituting the value of y in equation (1), we have
x=2004+30=50+30=80
Hence the minimum passing marks are 80 and the maximum marks are 200.

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