Question

3
Mohit can do a piece of work in 8 hours.Jim can do it in 10 hours. Jack can do the same work in 20 hours.
In how much time will they all complete the work if they do it together?
7
9
5
7
(a) 3 hours
hours
(c) 4 hours
(d) 4-hours
11
11
7
9
Biho
(b) 3-
norlin Adays?​

Answer 1

Step-by-step explanation:

actually you haven't mentioned it correctly, I mean please mention it clearly so that we can solve it for you