Fill in the blanks to make the statements true:
If 45 persons can complete a work in 20 days, then the time taken by 75 persons will be ………… hours.
∵ 45 persons can complete a work in 20days.
∴ 1 persons can complete a work in 45× 20i.e 900days
Similarly, 75 persons can complete the same work in 
= 12× 24 = 288 h
41