Arun can do a piece of work in 5 days and RAM in 4 days how long will it take to do the same work if they work together
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Step-by-step explanation:
Arun can do a work in 5 days
Arun's 1 day work =1/5 work
Then, Ram can do work in 4 days
Ram's 1 day =1/4 work
Then,( Arun and Ram)'s 1 day work =( 1/4+1/5)
= 9/20 work
=20/9 days
=2 2/9 days
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