If A can finish a job in 20 days and B can finish the same job in 30 days, how l

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Question: If A can finish a job in 20 days and B can finish the same job in 30 days, how long will it take for both A and B to finish the job together?

Options:

10 days
12 days
15 days
18 days

Correct Answer: 12 days

Solution:

A\'s rate = 1/20, B\'s rate = 1/30. Combined rate = 1/20 + 1/30 = 1/12. They will finish the job in 12 days.

If A can finish a job in 20 days and B can finish the same job in 30 days, how l

Practice Questions

If A can finish a job in 20 days and B can finish the same job in 30 days, how long will it take for both A and B to finish the job together?

10 days
12 days
15 days
18 days

Questions & Step-by-Step Solutions

If A can finish a job in 20 days and B can finish the same job in 30 days, how long will it take for both A and B to finish the job together?

Work Rate – Understanding how to calculate individual work rates and combine them to find a total work rate.
Fraction Addition – Adding fractions with different denominators to find a combined rate.
Time Calculation – Calculating the time taken to complete a job based on combined work rates.

If A can finish a job in 20 days and B can finish the same job in 30 days, how l

What’s inside this PDF?

If A can finish a job in 20 days and B can finish the same job in 30 days, how l

Practice Questions

Questions & Step-by-Step Solutions

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