Time and Work

1.         A can do a piece of work in 20 days which B can do in 12 days. B worked at it for 9 days. A can finish the remaining work in :
(1) 3 days        (2) 5 days            (3) 7 days          (4) 11 days

2.         A Can do a certain job in 25 days which B alone can do in 20 days. A started the work and was joined by B after 10 days. The work lasted for..
(1) 25/2 days      (2) 128/9 days      (3) 15 days        (4) 50/3 days  

3.         Six women alone can complete a piece of work in 10 days whereas 10 children alone take 15 days to complete the same piece of work. How many days will 6 women & 10 children together take to complete the piece of work ?
(1) 7                (2) 8              (3) 6              (4) 4

4.         2 Women & 10 children together take 8 days to complete a piece of work. How many days will 10 children alone take to complete the piece of work if 8 women can complete the piece of work in 6 days ?
(1) 15              (2) 12              (3) 10           (4) 24

5.         21 Binders can Bidn 1400 books in 15 days. How many binders will be required to Bind 800 books in 20 days.
(1) 7                (2) 9                (3) 12           (4) 14 

6.         18 Children can do a piece of work in 12 days. How many children would be required to do the same work in 8 days.
(1) 12               (2) 18               (3) 24          (4) 27   

7.         8 men and 4 women together can complete a piece of work in 6 days the work done by a man in one day is double the work done by a women in one day. If 8 man and 4 women started working and after 2 days 4 men left & 4 new women joined. In how many more days the work be completed ?
            1) 5 days         2) 8 days           3) 6 days        4) 4 days

8.         B & C together can complete a work in 8 days. A & B can together can complete the same work in 12 days & A & C together can complete the same work in 16 days. In how many days can A, B & C together complete the work ?
            1) 48/3 days         2) 96/13 days         3) 89/12  days          4) 41/12 days     

9.         An AC consumers 8 unit of electricity in 30 minute & a bulb consumers 18 unit of electricity in 6 hours. How many unit of electricity will both AC and bulb consumer in 8 days if they run 10 hours a day ?
            1) 1280 unit       2) 1528 unit        3) 1248 unit       4) 1520 unit   

10.       8 men can complete a piece of work in 20 days. 8 women can complete the same work in 32 days. In how many days will 5 men & 8 women together complete the same work ?
            (1) 16 days      (2) 12 days          (3) 14 days          (4) 10 days 

11.       6 women and 6 man together can complete a piece of work in 6 days. In how many days can 15 man alone complete the same work if 9 women can complete it in 10 days ?
            (1) 6            (2) 5           (3) Cannot be determined       (4) None of these

12.       Two man alone or three women alone can complete a piece of work in 4 days. In how many days 1 man & 1 woman can complete the same piece of work ?
            (1) 6 days      (2) 24/5 days      (3) 12/7 days     (4) Cannot be determined 

13.       Seven girls can do a piece of work in 13 days. 6 boys can do the same piece of work in 12 days. Nine men can complete the same in 9 days & 6 women can complete in 14 days the same work. Who are the most efficient ?
            (1) Boys      (2) Girls        (3) Women      (4) Men 

14.       A man and a boy complete a work together is 24 days. If for the last 6 days man alone does the work then it is completed in 26 days how long the boy will take to complete the work alone ?
            (1) 72 days      (2) 20 days      (3) 24 days      (4) 36 days  

15.       If 12 men and 16 boys can do a piece of work in 5 days; 13 men & 24 boys can do it in 4 days, then the ratio of the daily work done by a man to that of a boy is ;
            (1) 2 : 1             (2) 3 : 1            (3) 3 : 2            (4) 5 : 4   

16.       A does 20 % less work than B. If A can complete a piece of work in 15/2 hrs. then B can do it in
            (1) 5 hrs           (2) 11/2 hrs         (3) 6 hrs           (4) 13/2 hrs   

17.       A can built a wall in 30 days, while B alone can built it in 40 days. If they built it together and get a payment of Rs. 7000, what is B’s share ?
            (1) Rs. 3000    (2) Rs. 2000    (3) Rs. 5000      (4) Cannot be determined     

18.       Kamal can do a work in 15 days. Bimal is 50 % more efficient than Kamal. The number of days, Bimal will take to do same piece of work is ;
            (1) 10           (2) 21/2          (3) 12          (4) 14    

19.       If 5 men and 9 women can finish a piece of work in 19 days 3 men & 6 women can do the same work in.
            (1) 10 days     (2) 12 days       (3) 13 days       (4) 15 days 

20.       A man a women & a boy can complete a job in 3 days, 4 days and 12 days respectively. How many boys must assist 1 man and 1 women to complete the job in  1/4 of a day ?
            (1) 10             (2) 14            (3) 19          (4) 41


ANS KEY

Question No.
Answer
1
2
2
4
3
3
4
2
5
2
6
4
7
1
8
2
9
4
10
1
11
4
12
2
13
1
14
4
15
1
16
3
17
1
18
1
19
4
20
4



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