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A can finish a work in 12 days and B can do it in 15 days after A had worked for 3 days B also joined A to finish the remaining work in how many days the remaining work will be finished?
Answers
Answered by
3
Answer:
5 days
Step-by-step explanation:
LCM of 12 and 15 =60
Hence consider the quantum of work to be 60 units.
A can finish the job of 60 units in 12 days.. ..Hence, per day A does 5 units of work.
Similarly, B does 4 units of work per day.
For 3 days, A does the job alone…..which means he completes 5*3=15 units of work.
Hence balance work remaining = 60–15 = 45 units
A and B combined can finish (5+4)=9 units of work per day.
They will take 45 units / 9 units/day =5 days to complete the remaining work.
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Answered by
6
Answer:
5 days is the correct answer
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