Question

A scored 30% marks and failed by 15 marks. b scored 40% marks and obtained 35marks more than those required to pass. What is the pass perecantage

Answer 1

total marks be x

A scored 30% marks and failed by 15 marks
so, pass mark, P = 30% of x + 15
P = 30%x + 15..........(1)

B scored 40% marks and obtained 35 marks more than pass mark
so, P = 40% of x - 35
P = 40%x - 35...........(2)

equate (1) and (2)
30%x + 15 = 40%x - 35
15 + 35 = 40% x - 30%x
10% x = 50
10x/100 = 50
x/10 = 50
x = 500

so, total mark is x = 500 marks
pass mark, P = 30% of 500 + 15 = 150 + 15 = 165

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