** Question No : 1**

5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacity of man and boy is in the ratio

1:2

2:1

1:3

2:3

** Question No : 2**

10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

7 days

8 days

9 days

10 days

** Question No : 3**

4 men and 6 women finish a job in 8 days, while 3 men and 7 women finish it in 10 days. In how many days will 10 women working together finish it ?

40 days

30 days

60 days

50 days

** Question No : 4**

A piece of work can be done by 6 men and 5 women in 6 days or 3 men and 4 women in 10 days. It can be done by 9 men and 15 women in how many days ?

2 days

3 days

4 days

5 days

** Question No : 5**

A can do a certain job in 25 days which B alone can do in 20 days. A started the work and was joined by B after 10 days. The number of days taken in completing the wotk were ?

$13\frac{2}{3}kmph$

$14\frac{2}{3}kmph$

$15\frac{2}{3}kmph$

$16\frac{2}{3}kmph$

** Question No : 6**

Worker A takes 8 hours to do a job. Worker B takes 10 hours to do a job. How long should it take both A and B, working together to do same job.

$1\frac{4}{9}$

$2\frac{4}{9}$

$3\frac{4}{9}$

$4\frac{4}{9}$

** Question No : 7**

Two pipes can fill the cistern in 10hr and 12 hr respectively, while the third empty it in 20hr. If all pipes are opened simultaneously, then the cistern will be filled in

7 hr

7.5 hr

8 hr

8.5 hr