Question

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​

Answer 1

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]