Question

a man can copy 75 pages in 45 hours for every hour he works he paid a Rupee how much can he get if he copies 45 pages

Answer 1

hey !!

Man copy pages=75
hour's he take=45
rate of per hour =1 rs
pages cover in 1 hour=total pages/total hour
75/45=1.67page per hour 
for 45 page he take = almost he take 27 hour's to do the work

Answer 2

27 HOURS IS CORRECT ANSWER!