Question

Question &
A can complete a piece of work in 40 days, B in 60 days and C in 80 days.
A works alone on the first day, A and B on second day and all three of them on the third day
On the fourth day B works alone and is joined by C on the fifth day and all the three persons work on the small
On the seventh day C worked alone.
A joined him on the eighth day and on the ninth day all 3 of them worked
If the entire cycle is repeated till the work is completed, how many days will they need to complete the ​work?

Answer 1

Answer:

1080 days

Step-by-step explanation:

According to the question

A+(A+B)+(A+B+C)=320 days

B+(B+C)+(B+C+A)=380 days

C+(C+A)+(C+A+B)=380 days

All together,(ie.,320+380+380) they complete the work in 1080 days.