Question

in an exam a student score 20% marks and hr is failed by 20 marks .in the same exam another student score 30% marks and passed by 20 marks then find
1.total marks.
2.passing percentage.
3.pass marks

Answer 1

let the total mark be X
a/q
20%of X +20 = 30%of X -20
after solving the equation, we get
X = 400
hence,
the total marks = 400
pass marks = 100
passing % = (100/400) × 100
25%