Chain Rule Worksheet-5

Chain Rule Worksheet-5

1. In a camp, 95 men had provisions for 200 days. After 5 days, 30 men left the camp. For how many days will the remaining food last now?

(a) 180               (b) 285               (c)           (d) None of these

2. A garrison of 500 men had provisions for 27 days. After 3 days a reinforcement of 300 men arrived. For how many more days will the remaining food last now?

(a) 15                  (b) 16                  (c)               (d) 18

3. A garrison had provisions for a certain number of days After 10 days, of the men desert and it is found that the provisions will now last just as long as before. How long was that?

(a) 15 days         (b) 25 days        (c) 35 days         (d) 50 days

4. 15 men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each would 21 women take, if 3 women do as much work as 2 men?

(a) 18                  (b) 20                 (c) 25                  (d) 30

5. A contractor undertook to do a certain piece of work in 9 days. He employed certain number of men, but 6 of them being absent from the very first day, the rest could finish the work in 15 days. The number of men originally employed were:

(a) 12                  (b) 15                  (c) 18                  (d) 24

6. A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the beginning and 100 more after 35 days and completes the work in stipulated time. If he had not engaged the additional men, how many days behind schedule would it be finished?

(a) 3                    (b) 5                    (c) 6                    (d) 9

7. A contractor employed 30 men to do a piece of work in 38 days. After 25 days, he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?

(a) 1                     (b)                 (c)                 (d)

8. 12 men and 18 boys, working hours a day, can do a piece of work in 60 days. If a man works equal to 2 boys, then how many boys will be required to help 21 men to do twice the work in 50 days, working 9 hours a day?

(a) 30                 (b) 42                 (c) 48                  (d) 90

9. If 3 men or 6 boys can do a piece of work in 10 days, working 7 hours a day; how many  days will it take to compete a piece of work twice as large with 6 men and 2 boys working together for 8 hours a day?

(a) 6                    (b)                 (c)                 (d) 9

10. 2 men and 7 boys can do a piece of work in 14 days; 3 men and 8 boys can do the same in 11 days. Then, 8 men and 6 boys can do three times the amount of this work in:

(a) 18 days         (b) 21 days         (c) 24 days        (d) 30 days

Answer Key:

(1)-b; (2)-a; (3)-d; (4)-d; (5)-b; (6)-b; (7)-a; (8)-b; (9)-b; (10)-b