a person X job in 3hours and another person Y can complete a work in 4 hours how long it will take to complete the job if they work together.
Plz I need a detailed explanation
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Answer:
LCM of 3,4 = 12 = Total work
efficiency = 4,3 (X:Y)
both do whole work in = 12/7 = 1(5/7) days (Ans)
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