1. A can do a work in 12 days while B can do it in 15 days. They undertake to complete it together for Rs. 450. what will be the share of A in this amount of money ?

Rs. 200

Rs. 240

Rs. 250

Rs. 300

Answer: Rs. 250

Explanation:


2. A certain number of men can complete a job in 30 days. If there were 5 men more, it could be completed in 10 days less. How many men were in the beginning ?

10

15

20

25

Answer: 10

Explanation:


3. A man can do a piece of work in 5 days, but with the help of his son, he can do it in 3 days. In what time can the son do it alone ?

7 days

8 days

7 and 1/2 days

6 and 1/2 days

Answer: 7 and 1/2 days

Explanation:


4. 12 persons can do a piece of work in 4 days. How many persons are required to complete 8 times the work in half the time ?

192

190

180

144

Answer: 192

Explanation:


5. A job can be completed by 12 men in 12 days. How many extra days will be needed to complete the job if 6 men leave after working for 6 days ?

3 days

6 days

12 days

24 days

Answer: 12 days

Explanation:


6. A can do a work in 12 days. When he had worked for 3 days, B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work ?

6 days

12 days

4 days

8 days

Answer: 6 days

Explanation:


7. Working efficiencies of P and Q for completing a piece of work are in the ratio 3 : 4. The number of days to be taken by them to complete the work will be in the ratio ?

3 : 2

2 : 3

3 : 4

4 : 3

Answer: 4 : 3

Explanation:


8. 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:


9. If 12 carpenters working 6 hours a day can make 460 chairs in 240 days, then the number of chairs made by 18 carpenters in 36 days each working 8 hours a day is ?

92

132

138

126

Answer: 138

Explanation:


10. 8 workers can build a wall 18 m long, 2 m broad and 12 m high in 10 days, working 9 hours a day. Find how many workers will be able to build a wall 32 m long, 3 m broad and 9 m high in 8 days working 6 hours a day ?

16

20

30

10

Answer: 30

Explanation: