Ramu and Balu working together can paint a house in 20 days. Ramu alone can do it in 30 days how many days will balu take to complete the same work alone?
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Answered by
5
both Sonu and Neenu together can do a piece of work in 20 days.
therefore work done by both of them together in 1 day = 1/20
Sonu can work alone in 30 days.
the work done by Sonu in 1 day = 1/30
the work done by Neenu in 1 day = 
thus Neenu will take 60 days to complete the work alone.
hope this helps you.
cheers!!
therefore work done by both of them together in 1 day = 1/20
Sonu can work alone in 30 days.
the work done by Sonu in 1 day = 1/30
the work done by Neenu in 1 day = 
thus Neenu will take 60 days to complete the work alone.
hope this helps you.
cheers!!
Answered by
3
No. of days taken by Ramu alone to do the work=30
Work done by Ramu in a day=1/30
No. of days taken by Ramu and Balu together=20
Work done by Ramu and Balu in a day=1/20
Work done by Balu alone in a day=
Work done by them together in a day - Work done by Ramu alone in a day
1/20-1/30----------->3-2/60---------->1/60
Work done by Balu alone in a day=1/60
No. of days taken by Balu alone=60 days.
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