1. 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days ?

12

20

10

15

Answer: 10

Explanation:


2. If 20 women can lay a road of length 100m in 10 days. Then 10 women can lay the same road of length 50 m in ?

20 days

15 days

5 days

10 days

Answer: 10 days

Explanation:


3. A father can do a job as fast as his two sons working together. If one son does the job in 3 hours and the other in 6 hours, the number of hours taken by the father, to do the job alone is ?

1

2

3

4

Answer: 2

Explanation:


4. If 1 man or 2 women or 3 boys can do a piece of work in 44 days, then the same piece of work will be done by 1 man, 1 woman and 1 boy in ?

21 days

24 days

26 days

33 days

Answer: 24 days

Explanation:


5. A can do a work in 10 days and B in 20 days. If they together work on it for 5 days, then the fraction of the work that is left is ?

3/4

4/3

3/20

1/4

Answer: 1/4

Explanation:


6. 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:


7. If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be ?

12 days

10 days

9 days

8 days

Answer: 10 days

Explanation:


8. If 80 persons can finish a work within 16 days by working 6 hours a day, the number of hours a day, should 64 persons work to finish that very job within 15 days is ?

5 hrs.

7 hrs.

8 hrs.

6 hrs.

Answer: 8 hrs.

Explanation:


9. A and B were assigned to do a job for an amount of 1,200. A alone can do it in 15 days, while B can do it in 12 days. With the help of C, they can finish in 5 days. The share of amount that C earns is ?

300

400

500

600

Answer: 300

Explanation:


10. Twenty women together can complete a work in 16 days. 16 men together can complete the same work in 15 days. The ratio of the working capacity of a man to that of a woman is ?

3 : 4

4 : 3

5 : 3

4 : 5

Answer: 4 : 3

Explanation: