Respuesta :

kimberlydea13

Answer:

Step-by-step explanation:

5 men do 1 unit of work in 1 hr. 1 man does 1/5 unit of work in 1 hr. 2 men do 2/5 units of work in 1 hr. Therefore 2 men will take 5/2 hours to dig 1 hole and take 5/4 hrs to dig half a hole.

Smartgirl08

Answer:

2 men will take 5/4 hrs to dig half a hole.

Step-by-step explanation:

5 men do 1 unit of work in 1 hour. 1 man does 1/5 unit of work in 1 hour. 2 men do 2/5 units of work in 1 hour. Thats why 2 men will take 5/2 hours to dig 1 hole and take 5/4 hours to dig half a hole. :)

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