Mastering Time and Work Concepts

If A can complete a work in 10 days and B in 15 days, how long will they take to complete it together?

• 6 days

• 8 days

• 5 days

• 12 days

A can do a piece of work in 12 days, while B can do it in 18 days. How long will they take to finish the work together?

• 10 days

• 5 days

• 7.2 days

• 8 days

If A works twice as fast as B and they complete a job in 6 days together, how long would A take to complete the job alone?

• 15 days

• 12 days

• 3 days

• 9 days

A can finish a task in 20 days, B in 30 days, and C in 60 days. How long will it take for all three to complete the task together?

• 15 days

• 25 days

• 5 days

• 10 days

If A and B can complete a work in 8 days, and A alone can do it in 12 days, how long will B take to complete the work alone?

• 24 days

• 20 days

• 16 days

• 30 days

A can complete a job in 15 days, B in 10 days, and C in 5 days. What is the ratio of their work rates?

• 1:2:3

• 3:4:5

• 4:5:6

• 2:3:6

If A can do a job in 24 hours and B can do it in 36 hours, how long will it take them to complete the job together?

• 18 hours

• 20 hours

• 12 hours

• 14.4 hours

A and B can complete a work in 16 days. If A works alone for 4 days, how many more days will B take to finish the work?

• 12 days

• 8 days

• 14 days

• 10 days

If A can do a job in 5 days and B can do it in 10 days, what fraction of the work will A complete in 2 days?

• 3/5

• 1/5

• 1/2

• 2/5

A can complete a task in 9 days, B in 12 days, and C in 18 days. How long will it take for A and C to complete the task together?

• 12 days

• 6 days

• 8 days

• 10 days