1. 3 pumps working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?

9

10

11

12

Answer: 12

Explanation:


2. If 18 people bind 900 books in 10 days , How many people will be required to bind 660 books in 12 days ?

22

14

13

11

Answer: 11

Explanation:


3. 4 person can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 person in 8 days ?

16

12

8

4

Answer: 16

Explanation:


4. If the price of 23 toys is 276, then what will the price of 12 toys ?

144

148

156

186

Answer: 144

Explanation:


5. If 16 men working 7 hours day can plough a field in 4l days, in how many days will 14 men working 12 hours a clay plough the same field ?

46

32

35

30

Answer: 32

Explanation:


6. 36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ?

24 days

28 days

34 days

35 days

Answer: 24 days

Explanation:


7. 39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work ?

10

13

14

15

Answer: 13

Explanation:


8. A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally ?

75

82

100

110

Answer: 110

Explanation: