# How Many will Trees Cut in 12 hour? If

20 men can cut 30 trees in 4 h. If 4 men leave the job, how many trees will be cut in 12 h?

- 72
- 80
- 68
- 79

**Answer: (1) 72**

**Explanation:-**

20 men cut tree in 4 hr. = 30

20 men cut tree in 1 hr. = 30/4

Then, 1 men cut tree in a hr = 30/4 x 20

= 3/8

4 men left,

Then, remaining men = 16

16 men cut tree in 12 h. = 3 x 16 x 12/8

= 3 x 2 x 12

= 6 x 12

= 72 tree

If four men leave the job, 72 trees will be cut in 12 hr.