ok so basically

passing marks is 40%

he gets 65 and fails by 3 marks

marks to pass = 65+3 = 68

40% of x = 68

x= 170

Follow Karo

Step-by-step explanation:

suppose that x=maximum no.

x*40%=65+3

x*40/100=65+3

x=6800/40

x=170