Question

Greg can complete a landscaping job in six days and Jeff can complete the same job in four days. Working together, and how many days could they complete the job?

Answer 1

• Greg can complete work=6days=a
• Jeff can complete the job=4days=b

Both can complete in

`\\ \rm\longmapsto (ab)/(a+b)`

`\\ \rm\longmapsto (6(4))/(6+4)`

`\\ \rm\longmapsto (24)/(10)`

`\\ \rm\longmapsto 2.4days`

Answer 2

2.4 days

Explanation:

they could complete the job in :

(6×4)/(6+4) = 24/10 = 2.4 days