Question

a student who scored 30% of marks and failed by 35 marks . another student who scored 45% marks and got 25 marks more than the pass mark .find the pass marks.

Answer 1

0.30×x=x-35

0.45×x=x+25

solving both equation we gwt,

0.45x-15.75=0.30x+7.5

0.15x=23.25

x=155 ; Hence pass mark