Q11. 10 men, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days ?
A. 12
B. 10
C. 15
D. 6
Q12. A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be :
A. 21.25 m
B. 10 m
C. 12.5 m
D. 17.5 m
Q13. 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 ?
A. 12
B. 9
C. 11
D. 10
Q14. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with the remaining meal ?
A. 40
B. 20
C. 30
D. 50
Q15. 4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat – weavers in 8 days ?
A. 4
B. 8
C. 16
D. 12
Q16. Running at the same constant rate,6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes ?
A. 648
B. 1800
C. 2700
D. 10800
Q17. A man completes of a job in 10 days. At this rate, how many more days will it take him to finish the job ?
A. 6
B. 7
C. 5
D. 71