Question

4 people can dig a trench in 3 hours How long would it take 9 people give your answer in minutes

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Answer 1

1 hour and 20 minutes

Explanation:

If 4 people take 3 hours, 1 person will take 4 times as long. This is 4*3=12 hours. If 9 people do it, it will take 1/9 of the time 1 person takes to do it, which is 12/9 = 1.3 recurring, or 1 and 1/3 of an hour.

Answer 2

it takes 80 minutes

Explanation:

Hope this helps