Question

If 16 workers can finish a job in 3 hours, how long should it take 4 workers to finish the same job?

Answer 1

Let x hours be taken by 4 workers to finish the same work.
inverse proportion
x×4=16×3
$x = \frac{16 \times 3}{4} \\ x = 12$
12 hours will be taken by 4 workers.

Answer 2

Answer:

It take 12 minutes for 4 workers to finish the same job.

Step-by-step explanation:

Given :16 workers can finish a job in 3 hours

To Find :How long should it take 4 workers to finish the same job?

Solution:

16 workers complete the work in hours = 3

1 workers complete the work in hours = $3 \times 16$

                                                                  = $48$

4 workers complete the work in hours = $\frac{48}{4}$

                                                                  = $12$

Hence it take 12 minutes for 4 workers to finish the same job.