A certain number of men complete a piece of work in 60 days. If there were 8 men more, the work could be finished 10 days earlier. The number of men originally was ?
Answer & explanation
Correct answer: option 2
Let there were originally x number of carpenter .
Total work = efficiency × number of days
Total work = 60 × x = 60x
8 men joined work . So work will completed 10 days earlier i.e. 50 days
total work by them = 50(x + 8)
As per questions,
60x = 50(x + 8)
60x = 50x + 400
10x = 400
x = 40 is number of men