Question

4 people can dig a trench in 3 hours
how long will it take 9 people?
give your answer in minutes

Answer 1

Answer:

6 hour 15 min

hope it will help you

Answer 2

Answer:

80 minutes

Step-by-step explanation:

4 man can do it in 180 minutes

1 man will take more time so 180×4

9 man will take less time as compared to 1 man so 180×4÷9

and

answer will be 80 minutes