Question

Pete can do a job in 50 minutes while his brother Jim can do it in 1/2 the time. How long will it take them to do the job working together? (50/3 min)

Answer 1

It will take them 20 minutes to do the job working together.

Working time calculation

Given that Pete can do a job in 50 minutes while his brother Jim can do it in 1/2 the time, to determine how long it will take them to do the job working together, the following calculation must be performed:

• 1/1 + 2/1 = 3/1
• 1 / (3/1) = 1/3
• 60 min / 3 = 20 min

Therefore, it will take them 20 minutes to do the job working together.

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