Question

30% of the maximum marks are required to pass a test a students gets 135 marks and is declared failed by 15marks find the maximum marks

Answer 1

maximum marks = M
marks obtained by student = 135  and failed by 15 marks.  Hence minimum marks to pass are  135+15 = 150. 
         30% M = 150 
         30 M / 100 = 150
           M = 500

Answer 2

marks of a student = 135

failed by= 15

required marks to pass = 135 + 15 = 150

let the total marks be x

then 30% of x= 150

30/100 * x=150

x= 150 * 10/3 = 500

therefore the maximum marks is 500