Question 1
A can do a piece of work in 12 days whereas B can do the same work in 18 days. In how many days (A & B) together can do the same work if they are working together?
7 2/5
7 1/5
8 2/5
8 1/5
Question 2
Aditya can do a piece of work in 24 days whereas Raman can do the same work in 45 days. In how many days they can complete the same work together?
350/23
360/23
350/33
360/37
Question 3
A can do one fifth part of a task in 4 days, B can do one sixth part of the same work in 5 days. If they work together, then in how many days can this task be completed?
12
30
20
15
Question 4
A alone can do a work in 30 days. B alone can do the same work in 60 days. If they work together for 5 days, then what part of the work will be left?
2/3
1/2
3/4
5/6
Question 5
If A can do a piece of work in 20 days whereas (A & B) together can do the same piece of work in 15 days. In how many days B alone can do the same work?
60
80
50
32
Question 6
A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 4 days B had to leave. Then A working with a new worker C completed the remaining work in 3 days. If C works alone, in how many days can he do 40% of the same work ?
9
8
10
8 1/2
Question 7
A can complete a work in 24 days and B can complete the same work in 32 days. If they work together and after certain time B left the work and A completed the remaining work. Then total work was completed in 18 days. After how many days B left the work?
6 days
8 days
10 days
12 days
Question 8
A tap can fill a cistern in 8 hours and another tap can empty the cistern in 16 hours. If both the taps are opened simultaneously, the time (in hours) to fill the cistern will be :-
8
10
16
24
Question 9
A cistern has two taps which fill it in 12 min and 15 min respectively. There is also a waste pipe in the cistern. When all pipes are opened, the empty cistern is full in 20 min. How long will the waste pipe take to empty a full cistern?
12 min
10 min
8 min
16 min
Question 10
Pipe A can fill a tank in 12 hours whereas Pipe B can empty the same tank in 20 hours. If both the pipes are operating simultaneously, then in how many hours will half of the tank get filled?
12
15
10
18
There are 16 questions to complete.