Question

A can do a piece of work in 60 days, which B can do in 40 days. Both
started the work but A left 10 days before the completion of the work.
The work was finished in how many days?
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Answer 1

Answer:

A can do a piece of work in 60 days, which B can do in 40 days. Both

started the work but A left 10 days before the completion of the work.

The work was finished in how many days?