Q. A can do 1/4 of a work in 5 days and b can do 1/3 of the same work in 10 days find the no of days in which both working together will complete it
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Answer:
12 days
Step-by-step explanation:
A can do 1/4 of the work in 5 days.
This means that A will take 20 days to
complete the work. This also means that A will finish 1/20 of the work in 1 day. Similarly, B will finish 1/30 of the work in 1
day.
If A and B work together, the fraction of the work that will get done in 1 day is:
1/20 + 1/30
= 5/60
= 1/12
This means that when (A+B) are working, they will together finish 1/12 of the work in 1 day. This is to say they will take 12 days to finish the work.
Number of days to finish work = 1/ [Fraction of work finished in one day]
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