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Worksheets

Mastering Numbers and Work Efficiency

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

If A can complete a work in 10 days, how much work can A do in 3 days?

a)

1/5 of the work

b)

2/10 of the work

c)

3/10 of the work

d)

4/10 of the work

2.

B can finish a task in 15 days. How much of the work can B complete in 5 days?

a)

1/4 of the work

b)

1/2 of the work

c)

2/3 of the work

d)

1/3 of the work

3.

A and B can complete a work together in 6 days. If A alone can do it in 10 days, how long will B take to finish it alone?

a)

20 days

b)

18 days

c)

15 days

d)

12 days

4.

If C can do a job in 12 days and D can do it in 15 days, how long will they take to complete the job together?

a)

8 days

b)

6.67 days

c)

5 days

d)

10 days

5.

A can do a piece of work in 8 days, while B can do it in 12 days. How long will it take them to complete the work together?

a)

5 days

b)

3.2 days

c)

4.8 days

d)

6.4 days

6.

If two workers can complete a task in 20 days together, how much of the work can they complete in 5 days?

a)

3/4 of the work

b)

1/2 of the work

c)

1/5 of the work

d)

1/4 of the work

7.

A can complete a task in 4 hours, B in 6 hours. How long will it take them to finish the task together?

a)

2.4 hours

b)

5 hours

c)

3 hours

d)

1.5 hours

8.

If a job takes 30 hours to complete by one worker, how many hours will it take for three workers to complete the same job if they work at the same rate?

a)

10 hours

b)

25 hours

c)

20 hours

d)

15 hours

9.

A can do a work in 5 days, B in 10 days, and C in 15 days. How long will it take for all three to complete the work together?

a)

30/11 days

b)

25/9 days

c)

15/4 days

d)

20/7 days

10.

If A works twice as fast as B and they complete a job in 12 days together, how long would A take to complete the job alone?

a)

24 days

b)

18 days

c)

30 days

d)

12 days