Question

All the members of a construction crew work at the same pace. Four members of the crew, working together, are able to pour foundations in 32 hours.

a
How many hours would this job take if there were half as many workers?

Answer 1

This would take 16 hours.

Answer 2

Half of 4 is 2 so set up a proportion using 4, 32, and 2.

`(4)/(32) =(2)/(y)`

Then, cross multiply and solve for y.

`4y=64`

`64/4=16`

`y=16 hours`