Question

It takes 50 people 200 hours to complete a task. How long will it take 40 people to complete the same task?

Answer 1

do proportions
\[50=200\\ 40=x \\ x=\frac{200\times 40}{50}\]

Answer 2

160 minutes?

Answer 3

another way of doing is to first find how long it takes one person
and to find that just divide 200 by 50
the the multiply the result by 40

Answer 4

yes 160 hour not minutes my dear