Ravi, Arvind and Vimal can complete a piece of work in 5 days, 6 days and 8 days, respectively. In how many days can all the three together complete the work?
Given:
Ravi completes work in 5 days
Arvind completes work in 6 days
Vimal completes work in 8 days
Solution:
Ravi completes work in 5 days
Work rate = per day
Arvind completes work in 6 days
Work rate = per day
Vimal completes work in 8 days
Work rate = per day
Total work rate =
=
= work per day
Time = = = days
Alternate Method:
Total work = 120 unit
Total efficiency = 24 + 20 + 15 = 59
Time = = days
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