Rahul can do one fifth of a work in 2 days and Vishal can do two third of IT in eight days. In how much time can they together complete the work?
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Step-by-step explanation:A’s rate is (1/3)/5 = 1/15 and B’s rate is (2/5)/10 = 2/50 = 1/25.
Their combined rate is 1/15 + 1/25 = 5/75 + 3/75 = 8/75.
Thus, the time it takes the two machines to complete the job is 1/(8/75) = 75/8 = 9 3/8 days.
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