If a person do a work completely in 2 hours . If 2 person will do work ???
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In 1 hours. ...
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The work done by a person in 1 hour =1/2
The work done by 2 persons =2/2=1
No .of hours=1/The work done by 2 persons
=1
If 2 person are there then they will do work in 1hour.
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