Question

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?

Answer 1

Answer:

49 minutes

Step-by-step explanation:

Answer 2

Answer: 24.5

Step-by-step 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