1. Kamal can do a work in 15 days. Bimal is 50 per cent more efficient than Kamal in doing the work. In how many days will Bimal do that work ?

14 days

12 days

10 days

10 and 1/2 days

Answer: 10 days

Explanation:


2. A does 20% less work than B. If A can complete a piece of work in 7 and 1/2 hours, then B can do it in ?

6 and 1/2 hours

6 hours

5 and 1/2 hours

5 hours

Answer: 6 hours

Explanation:


3. A is thrice as good a workman as B and therefore is able to finish a job in 40 days less than B. Working together, they can do it in ?

14 days

13 days

20 days

15 days

Answer: 15 days

Explanation:


4. A and B can do a job together in 12 days. A is 2 times as efficient as B. In how many days can B alone complete the work ?

18 days

9 days

36 days

12 days

Answer: 36 days

Explanation:


5. A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is ?

20 days

21 days

22 days

24 days

Answer: 24 days

Explanation:


6. If 10 people can do a job in 20days, then 20 people with twice the efficiency can do the same job in ?

5 days

10 days

20 days

40 days

Answer: 5 days

Explanation:


7. Sunil completes a work in 4 days, whereas Dinesh completes the work in 6 days. Ramesh works 1 and 1/2 times as fast as Sunil. The three together can complete the work in ?

1 and 5/12 days

1 and 5/7 days

1 and 3/8 days

1 and 5/19 days

Answer: 1 and 5/19 days

Explanation:


8. To do a certain work, B would take time thrice as long as A and C together and C twice as long as A and B together. The three men together complete the work in 10 days. The time taken by A to complete the work separately is ?

22 days

24 days

30 days

20 days

Answer: 24 days

Explanation:


9. P is thrice as good a workman as Q and therefore able to finish a job in 48 days less than Q. Working together, they can do it in ?

18 days

24 days

30 days

12 days

Answer: 18 days

Explanation:


10. A is 30% more efficient than B, and can alone do a work in 23 days. The number of days, in which A and B, working together can finish the job is ?

11 days

13 days

20 days

21 days

Answer: 13 days

Explanation: