Question

A can do a piece of work in 10 days.If a and b work together they can finish it in 6 days.Find the number of days in which b alone finish the work?​

Answer 1

Answer:

f-A-completes-a-work-in-10-days-and-A-and-B-complete-a-work-in-6-days-then-in-how-many-days-B-will-complete-this-work?

A can 1/10th of the work in a day.

However, A and B together do 1/6th of the work in a day.

Therefore, B can do (1/6) - (1/10) = (10–6)/(6*10) = 4/60 = 1/15th of the work in a day.

Hence B will take 15 days to complete the work, working alone.

Check: (1/10)+(1/15) = (15+10)/(10*15) = 25/150 = 1/6, Correct.

Step-by-step explanation:

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