A can do a piece of work in 14 days, while B can do it in 21 days. They begin together.But, 3 days before the completion of the work, A leaves off. Find the total number of days taken to complete the work.
Answers
Answered by
0
Answer:
which standard question??
Answered by
0
Answer:
but I will u all coming ah ok well I have mailed my check n
Similar questions