Answers

2014-12-16T20:15:54+05:30
Anuj & Bhanu finish the work in 30days.
In 20 days they have finished 20/30= 2/3 of work

The work left was 1-2/3=1/3

Anuj finished the work 1/3 work in 20 days

Anuj would finish the whole work in 1*20/(1/3)=60 days.
Alone Anuj would  finished the work in 60days.
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2014-12-16T20:19:24+05:30
60 days A+B=1/30 of the work in one day In one day 20(1/30) of the work completed. Therefore 1/3 of work left It takes 20 days ( anuj ) to complete 1/3 of work Therefore work done in one day (1/3)/20=1/60 Therefore he will complete the work in 60 days alone
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