A man digs a trench in 3 days, another man can dig it in 5 days and third man can dig it in 6 days working alone. how much time will they take to dig it together?
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Answered by
8
work done by A in 1 day=1/3
....by B=1/5
........ by C =1/6
work done in one day by all=1/3+1/5+1/6
total work done in 30/21day
mark it brainliest
....by B=1/5
........ by C =1/6
work done in one day by all=1/3+1/5+1/6
total work done in 30/21day
mark it brainliest
Answered by
0
Step-by-step explanation:
A-1/3 can complete
B-1/5 can complete
c-1/7 can complete
so A takes 15days and B take 30days to complete the job separately
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