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One person can do a certain job in twentyone minutes and another person can do the same job in twenty eight minutes. How many minutes will it take them to do the job together?
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1 vote
One person can do a certain job in twentyone minutes and another person can do the same job in

twenty eight minutes. How many minutes will it take them to do the job together?

User Cduhn
by
8.0k points

2 Answers

4 votes

Answer: 24.5

Explanation:

Divide each of their jobs in half and then add the halves together so that would be 10 1/2 and 14 and then equals 24 1/2

User Muthukumar Anbalagan
by
9.3k points
3 votes

Answer:

49 minutes

Explanation:

User Satish Singh
by
8.3k points
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