Question

All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hours. How many hours would this job take if the number of workers decreased by factor of 2?

Answer 1

Explanation:

Answer 2

44 hours

Explanation:

All the members of a construction crew work at the same pace.

Given:

Number of workers = 6

Time needed = 22 hours

Then

6 workers
`\rightarrow` 22 hours

if the number of workers decreased by factor of 2, then

Number of workers
`=6:2=3`

Time needed
`=22\cdot 2=44` hours.

Here you should multiply, because less workers will need more time (indirect proportion)