SOLUTION: If 12 men can unload 360 tonnes of goods in 5 hours, find the rate of unloading in tonnes/man-hour. How many men are needed to unload 72 tonnes in 4 hours?

Algebra ->  Equations -> SOLUTION: If 12 men can unload 360 tonnes of goods in 5 hours, find the rate of unloading in tonnes/man-hour. How many men are needed to unload 72 tonnes in 4 hours?      Log On


   



Question 1090780: If 12 men can unload 360 tonnes of goods in 5 hours, find the rate of unloading in tonnes/man-hour. How many men are needed to unload 72 tonnes in 4 hours?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If 12 men can unload 360 tonnes of goods in 5 hours, find the rate of unloading in tonnes/man-hour.
360%2F%28%2812%2A5%29%29 = 6 tons per man-hr
:
How many men are needed to unload 72 tonnes in 4 hours
let m = no. of men required to do this
4m * 6 = 72
24m = 72
m = 72/24
m = 3 men