Question 1109020
Ten men can dig a trench in 4 days.
Find the number of man-days to dig one trench
10 * 4 = 40 man-days
:
How many men would dig the same trench in 2 days,working at the same rate?
let m = no. of men to do this
2d = 40
d = 40/2
d = 20 men to do it two days