1. A does half as much work as B in one-third of the time taken by B. If together they take 10 days to complete a work, then the time taken by B alone to do it would have been ?

30 days

25 days

6 days

12 days

Answer: 25 days

Explanation:


2. A man, a woman and a boy together finish a piece of work in 6 days. If a man and a woman can do the work in 10 and 24 days respectively. The days taken by a boy to finish the work is ?

30

35

40

45

Answer: 40

Explanation:


3. 3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women take to finish the work ?

20 days

10 days

4 days

15 days

Answer: 4 days

Explanation:


4. 15 men can finish a piece of work in 40 days. The number of days after which 5 men should leave the work so that the work is finished in 45 days altogether is ?

10

20

30

35

Answer: 30

Explanation:


5. A certain number of men can do a work in 40 days. If there were 8 men more, it could be finished in 10 days less. How many men were there initially ?

20

24

30

16

Answer: 24

Explanation:


6. If 12 men or 24 boys can do a work in 66 days, the number of days in which 15 men and 6 boys can do it is ?

44

33

55

66

Answer: 44

Explanation:


7. A can do a piece of work in 20 days which B can do in 12 days. B worked at it for 9 days. A can finish the remaining work in ?

5 days

7 days

11 days

3 days

Answer: 5 days

Explanation:


8. If 35 men can finish a piece of work in 8 days, then the number of men who can do the same work in 10 days is ?

38

28

19

17

Answer: 28

Explanation:


9. A canal of a village can be cleaned by 24 villagers in 12 days. The number of days in which 36 villagers can clean the canal is ?

18

8

72

16

Answer: 8

Explanation:


10. A can do a piece of work in 12 days and B in 24 days. If they work together, in how many days will they finish the work ?

12 days

20 days

15 days

8 days

Answer: 8 days

Explanation: