Question

a student who secures 20% marks in an examination fails by 30 marks another student secures 32% marks gets 42 marks than pass mark. percent of marks required to pass?

Answer 1

Answer:

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Step-by-step explanation:

By making the problem as equation

20% of whole mark +30 marks = Pass mark

32% of whole mark - 42 marks = Pass mark

Bu equating, 12 % =72 mark , So 100 % = 600

marks(whole mark)

Pass mark =

600*(32/100) - 42 = 150

or

600 *(20/100) +30 =150

150 marks = 25 %

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