Dheeraj can do a work in 9 days and Sunil in 15 days. if they work on it together for 5 days then the fraction on the work that is left, is
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Hey buddy!!
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Step-by-step explanation:
D does work in 9 days
=> D in 1 day does 1/9 part of work
S does work in 15 days
=> S in 1 day does 1/15 part of work
D+S = 1/9 +1/15 = 5+3/45=8/45
=> In 1 day, D+S does 8/45 part of work
In 5 days, D+S does 5×8/45 =8/9 part of work
remaining work =1- 8/9 = 1/9
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