Q1. A and B each working alone can do a work in 15 days and 25 days, respectively. They started the work together but B left after some time and A finished the remaining work in 7 days. After how many days from the start did B leave?
1. 3 2. 5 3. 7 4. 9 5. None of the above
Q2. A contract is to be completed in 50 days and 105 men were set to work, each working 8 h a day. After 25 days, 2/5th of the work is finished. How many additional men be employed, so that the work may be completed on time, each man now working 9 h a day?
1. 34 2. 36 3. 35 4. 37 5. None of the above
Q3. A, B and C can do a piece of work individually in 8, 12 and 15 days, respectively. A and B start working but A quits after working for 2 days. After this, C joins B till the completion of work. In how many days will the work be completed?
1. (a) 5(8/9) days 2. (b) 4(6/7) days 3. (c) 6(7/13) days 4. (d) 3 (3/4) days 5. (E)None of the above
Q4. X can do 1/4 of a work in 10 days, Y can do 40% of the same work in 40 days and Z can do 1/3 of the work in 13 days. Who will complete the work first?
1. X 2. Y 3. Z 4. Both X and Z 5. None of the above
Q5. A can build up a structure in 8 days and B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days only. In how many days will A alone build up the remaining part of the structure?
1. 10 days 2. 9 days 3. 12 days 4. 13 days 5. None of the above
Q6. When A alone does a piece of work, he takes 25 days more than the time taken by (A + B) to complete that particular work, while B alone takes 49 days more than the time taken by (A + B) to finish the same work. A and B together will take what time to finish this work?
1. 35 days 2. 25 days 3. 15 days 4. 45 days 5. None of the above
Q7. X can do a work in 16 days. In how many days will the work be completed by Y, if the efficiency of Y is 60% more than that of X?
1. 10 days 2. 12 days 3. 25 days 4. 30 days 5. None of the above
Q8. 4 men or 6 women or 10 children can paint a house in 5 days. The painting is given to a couple and their 5 sons. They finish the job in
(a) 11/60 days 2. (b) 5 (5/11) days 3. (c) 5 (6/11) days 4. (d) 11 (1/5) days 5.None of the above
Q9. A contractor undertook to finish a certain work in 124 days and employed 120 men. After 64 days, he found that he had already done 2/3 of the work. How many men can be discharged now, so that the work may finish in time?
1. 40 2. 50 3. 48 4. 56 5. None of the above
Q10. A, B and C can do a piece of work in 16, 32 and 48 days, respectively. They all begin together. A work continuously till it is finished, C leaves the work 2 days before its completion and B leaves the work 1 day before its completion. In what time is the work finished?
1.10 days 2. 20 days 3. 15 days 4. 30 days 5. None of the above
