Question

1. I can do a piece of work in 8 days, which can be done
by you in 10 days. How long would it take to do it if we
work together?
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Answer 1

Step-by-step explanation:

In one day :

I can do 1/8 work

you can do 1/10

we can do 1/8+1/10=4+5/40=9/40 part of work

we take 40/9 days to finish the work

= 4 4/9 days