A can do a job in 15 days, and B in 10 days. How many days will they take to finish the job if they work together?
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No of days A can do the job= 15
No of days B can do the job= 10
No of days they could do the job together= LCM of 15&10
LCM of 15 and 10= 30 (process in the pic below.)
Therefore,
Ans--> The number of days A&B can do the work together is 30.
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