Question

6. X can do a piece of work in 20 days and Y can do it in 30 days. They start work together and after
some days X leaves and the remaining work is completed by Y in 5 days. Find out the number of days
after which X left the job.
(a) 15 days
(b) 10 days
(c) 20 days
(d) None of these​

Answer 1

Answer:

15 days

Step-by-step explanation:

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