Maths: Important Topic: 
Self Assessment Test

Time and Work
QNo.1    If Arif can read 39 pages of a book in half an hour. How long will It take her to finish a book that is 1287 pages? 0
16 Hours
16.5 Hours
17 Hours
15.5 Hours
QNo.2    Twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days. After working for 3 days, sixteen adults left and six adults and four children joined them. How many days will they take to complete the remaining work ? 0
3 days
4 days
6 days
8 days
QNo.3    P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in__________days. 0
12
15
22
20
QNo.4    A and B can finish a work 30 days if they work together. They worked together for 20 days and then B left. A finished the remaining work in another 20 days. In how many days A alone can finish the work? 0
70
50
40
60
QNo.5    Two taps X and Y can fill a tank in 10 hrs. and 15 hrs.respectively. If the both taps are opened together, the tank will be full in_________? 0
3 hrs.
4 hrs,
5 hrs.
6 hrs.
QNo.6    A, B and C together earn Rs.150 per day while A and C together earn Rs.94 and B and C together earn Rs.76. The daily earning of C is:__________? 0
10 Rs,
15 Rs,
20 Rs.
25 Rs.
QNo.7    If 3 men or 4 women can construct a wall in 43 days, then the number of days that 7 men and 5 women take to construct it is : 32
12 days
14 days
16 days
18 days
QNo.8    If 6 men can make 10 sofas in 2 days, then 8 men can make 8 sofas in__________? 0
1.8 days
1.5 days
1.2 days
1 day
QNo.9    If 10 workers can make 10 tables in 10 days, then how many days would it take for 5 workers to make 5 tables? 0
1
5
10
25
QNo.10    If 6 men take 9 days to complete a work, how many men can complete the work in 3 days? 0
2 men
12 men
9 men
18 men
QNo.11    Assume that 20 cows and 40 goats can be kept for 10 days for Rs.460. If the cost of keeping 5 goats is the same as the cost of keeping 1 cow, what will be the cost for keeping 50 cows and 30 goats for 12 days? 0
Rs.1104
Rs.1000
Rs.934
Rs.1210
QNo.12    3 men and 7 women can complete a work in 10 days . But 4 men and 6 women need 8 days to complete the same work . In how many days will 10 women complete the same work? 0
50
30
40
13
QNo.13    P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day? 0
10 days
14 days
15 days
9 days
QNo.14    A tank can be filled by a pipe in 20 min. and by another pipe in 60 min. Both the pipes are kept open for 10 min. and then the first pipe is shut off. After this, the tank will be completely filled in__________? 0
10 min
20 min
30 min
40 min
QNo.15    A is thrice as good a work man as B and takes 10 days less to do a piece of work than B takes. B can do the work in:___________? 0
15 days
14 days
16 days
30 days
QNo.16    8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ? 0
6 days
8 days
10 days
12 days
QNo.17    15 men can build a 500m long wall in 30 days. In how many days can 30 men build a 1.2 km long wall? 0
48 days
24 days
40 days
36 days
QNo.18    If 28 men can finish a work in 15 days, 21 men can finish the same work in___________? 0
24 days
14 days
15 days
20 days
QNo.19    C takes 6 days to complete half of a work and D takes 5 days to complete 1/3rd of the same work. They take turns to complete the task. If C works for the first 4 days, in how many days will D complete the rest of the work without the help of C? 0
10 days
12 days
8 days
9 days
QNo.20    P,Q and R together earn Rs.1620 in 9 days. P and R can earn Rs.600 in 5 days. Q and R in 7 days can earn Rs.910. How much amount does R can earn per day? 0
Rs.40
Rs.70
Rs.90
Rs.100
QNo.21    P and Q can complete a work in 20 days and 12 days respectively. P alone started the work and Q joined him after 4 days till the completion of the work. How long did the work last? 0
5 days
10 days
15 days
12 days
QNo.22    P can finish a work in 18 days. Q can finish the same work in 15 days. Q worked for 10 days and left the job. how many days does P alone need to finish the remaining work? 0
8
6
4
2
QNo.23    wo pipes X and Y fill a tank in 15 hrs. and 20 hrs. respectively, while a third pipe ‘Z’ can empty the full tank in 25 hrs. All the three pipes are opened in the beginning. After 10 hrs. Z is closed. In how much time, will the tank be full ? 0
12 hrs
14 hrs
16 hrs
18 hrs
QNo.24    8 men can dig a pit in 20 days. If a man works half as much again as a boy, then 4 men and 9 boys can dig a similar pit in:__________? 0
12 days
16 days
18 days
20 days
QNo.25    Efficiency of Rashid and Danish are in the ratio 5:8. If Danish takes 51 days less than Rashid to complete the work, find the time taken by Rashid to complete the work. 0
85 days
126 days
118 days
136 days
QNo.26    If 12 men work 8 hours a day to complete a work in 10 days, how many men working 12 hours a day can complete the work in 5 days? 0
16
4
12
8
QNo.27    If daily wages of a man is double to that of a woman, how many men should work for 25 days to earn Rs.14400? Given that wages for 40 women for 30 days are Rs.21600. 0
15
14
16
13
QNo.28    Mansoor-Ul-Haque and Aaqib are working on a special assignment. Mansoor-Ul-Haque needs 6 hours to type 32 pages on a computer and Aaqib needs 5 hours to type 40 pages. If both of them work together on two different computers, how much time is needed to type an assignment of 110 pages? 0
7 hour 15 minutes
7 hour 30 minutes
8 hour 15 minutes
8 hour 30 minutes
QNo.29    Two pipes P and Q can fill a cistern in 12 min. and 15 min. respectively but a third pipe ‘R’ can empty the full tank in 6 min. P and Q are kept open for 5 min. in the beginning and then ‘R’ is also opened. In what time is the cistern emptied ? 0
30 min
35 min
40 min
45 min
QNo.30    A and B can together do a piece of work in 15 days. B alone can do it in 20 days. In how many days can A alone do it ? 0
40 days
50 days
60 days
70 days
QNo.31    Farjan and Kashif can complete a task in 30 days. Farjan leaves after 20 days and Kashif alone completes it in another 25 days. How many days does Farjan alone take to complete the entire task? 0
50
75
60
45
QNo.32    P can do a work in 24 days. Q can do the same work in 9 days and R can do the same in 12 days. Q and R start the work and leave after 3 days. P finishes the remaining work in_________days. 0
10
9
11
12
QNo.33    Kamal will complete work in 20 days. If Suresh is 25% more efficient than Kamal, he can complete the work in________days. 0
14
16
15
11
QNo.34    12 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 9 litres? 0
14
15
16
18
QNo.35    A alone can finish a work in X days. B alone can finish the same work in X+5 days. Together, they take 6 days to complete the work. Find X 0
12
8
10
9
QNo.36    A alone can finish a work in X days. B alone can finish the same work in X+5 days. Together, they take 6 days to complete the work. Find X 0
12
8
10
9
QNo.37    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? 0
2700
1080
450
1800
QNo.38    P and Q need 8 days to complete a work. Q and R need 12 days to complete the same work. But P, Q and R together can finish it in 6 days. How many days will be needed if P and R together do it? 0
7
8
9
10
QNo.39    P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in__________? 0
30 days
25 days
20 days
15 days
QNo.40    A tap can fill a tank in 32 min. and another can empty it in 16 min. If the tank is already half full and both the tanks are opened together, the tank will be_________? 0
12 min
14 min
16 min
20 min
QNo.41    A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days. A alone can do the work in__________? 0
20 days
30 days
40 days
none of these
QNo.42    If 10 bulls can plough 20 identical fields in 3 days working 10 hours a day, then in how many days can 30 bulls plough 32 same identical fields working 8 hours a day? 0
2
8
10
12
QNo.43    Two pipes P and Q can fill a cistern in 12 minutes and 16 minutes respectively. Simultaneously both the pipes are opened together, then after how much time Q should be closed so that the tank is full in 9 min ? 0
2 min
3 min
4 min
5 min
QNo.44    A and B can do a piece of work in 21 and 24 days respectively.They start the work together and after some days, A leaves and B completes the rest of the task in 9 days. After how many days did A leave? 0
5
6
7
8
QNo.45    If 6 men working together can complete 50 identical tasks in 4 hours then how many such identical tasks can be completed if 10 men are working together for 6 hours? 0
20
25
125
60
QNo.46    P works twice as fast as Q. If Q alone can complete a work in 12 days, P and Q can finish the work in________days 0
1
2
3
4
QNo.47    P is 30% more efficient than Q. P can complete a work in 23 days. If P and Q work together, how much time will it take to complete the same work? 0
9
11
23
13
QNo.48    6 men and 8 women can complete a work in 10 days. 26 men and 48 women can finish the same work in 2 days. 15 men and 20 women can do the same work in_______days. 0
4 days
6 days
2 days
8 days
QNo.49    To fill a cistern, pipes P, Q & R take 20, 15 & 12 minutes respectively. The time in minutes that the three pipes together will take to fill the cistern is:__________? 0
5 min
10 min
15 min
20 min
QNo.50    A alone can finish a work in 10 days and B alone can do it in 15 days. If they work together and finish, then out of a total wages of Rs.75. A will get:___________? 0
35 Rs.
40 Rs.
45 Rs.
None of these
QNo.51    2 men and 12 women can finish a job in 4 days. 4 men and 6 women can do the same job in 5 days. Find the time taken by 1 man and 1 woman to complete the job. 0
30 days
25 days
24 days
20 days
QNo.52    P and Q can do a work in 30 days. Q and R can do the same work in 24 days and R and P in 20 days. They started the work together, but Q and R left after 10 days. How many days more will P take to finish the work? 0
10
8
18
19
QNo.53    A can do a particular work in 6 days . B can do the same work in 8 days. A and B signed to do it for Rs. 3200. They completed the work in 3 days with the help of C. How much is to be paid to C? 0
Rs. 380
Rs. 600
Rs. 420
Rs. 400
QNo.54    If two pipes function together, the cistern will be filled in 6 hrs. One pipe fills the cistern 5 hrs. faster than the other. How many hours it take the second pipe to fill the cistern? 0
5 hrs
10 hrs
15 hrs
20 hrs
QNo.55    Two pipes can fill a tank in 10 hrs. and 12 hrs. respectively while a third pipe empties the full tank in 20 hrs. If all the three pipes operate together , in how much time the tank will be filled ? 0
7.5 hrs
5 hrs
7 hrs
None of these
QNo.56    4 men and 2 woman can complete a work in 2 days. If 2 men alone take 5 days to complete the work, find the time taken by 2 women alone to complete the work. 0
15 days
10 days
8 days
20 days
QNo.57    B can work 3 times faster than A They work together on a task and complete it in a day. How long does it take for B alone to complete the task? 0
32 hours
48 hours
3 days
4 days
QNo.58    A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every Third day ? 0
12 days
15 days
16 days
18 days
QNo.59    A and B together can complete a work in 1.2 days,. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work ? 0
10 days
11 days
15 days
20 days
QNo.60    X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last ? 0
6 days
10 days
15 days
20 days
QNo.61    A and B can do a piece of work in 72 days; B and C can do it in 120 days; A and C can do it in 90 days. In what time can A alone do it ? 0
80 days
100 days
120 days
150 days
QNo.62    A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in___________? 0
8 days
10 days
12 days
15 days
QNo.63    A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in_________? 0
15 days
20 days
25 days
30 days
QNo.64    A and B can do a work in 8 days, 13, and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in_________? 0
4 days
6 days
8 days
12 days