Ajay can do a task in 40 days he worked on it for 5 days and then praveen finish return 21 days in how many days can ajay and praveen finish the work together
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Ajay's part of work in 1 day=1/40
Ajay part of work in 5 days=5/40
=1/8
Remaining work=1-1/8
=7/8
Praveen done part of work in 21 days=7/8
So he did part of work in 1day=1/24part
In No of days praveen alone can finish the work=24days
Part of work by both in 1 day=1/24+1/40
=(5+3)/120
=8/120
=15days
Ajay part of work in 5 days=5/40
=1/8
Remaining work=1-1/8
=7/8
Praveen done part of work in 21 days=7/8
So he did part of work in 1day=1/24part
In No of days praveen alone can finish the work=24days
Part of work by both in 1 day=1/24+1/40
=(5+3)/120
=8/120
=15days
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