Ram can do work in 16 days and Shyam can do it in 20 days.They worked together for 5 days and then Shyam leaves.In how many days will Ram will finish the remaining work.
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Ram can do work 16 days
shyam can do work 20days
hence both together can do work =16 x 20/(16+20)=16 x 20/36=80/9 days
but according to question
they work together only 5days
hence part of work complete in 5days
=5/(80/9)
=45/80 part of work completed by together
hence remaining part of work=1-45/80
=35/80
hence 35/80 part of work do by Ram
=15x(35/80)=3x 35/16 =105/16 days
shyam can do work 20days
hence both together can do work =16 x 20/(16+20)=16 x 20/36=80/9 days
but according to question
they work together only 5days
hence part of work complete in 5days
=5/(80/9)
=45/80 part of work completed by together
hence remaining part of work=1-45/80
=35/80
hence 35/80 part of work do by Ram
=15x(35/80)=3x 35/16 =105/16 days
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