1. 210 men working 12 hours a day can finish a job in 18
days. How many men are required to finish the job in 20
days working 14 hours a day?
1
156 men
2
162 men
3
168 men
4
172 men
5
Answer not known
2. A is 20% more efficient than B. How much time will they
working together take complete a job which B alone could
have done in 22 days?
1
11 days
2
10 days
3
15 days
4
12 days
5
None of these
3. Sunita can finish a project in 21 days and Sarita can finish
the same project in 15 days. Sarita worked for 10 days and
left the job. How many days would it take Sunita to finish
the remaining work alone?
1
10 days
2
7 days
3
12 days
4
11 days
5
8 days
4. A is able to do a piece of work in 25 days and B can do the
same work in 35 days. If they work together for 10 days,
what is the fraction of work left?
1
11/35
2
17/35
3
19/35
4
24/35
5
13/35
5. B is 25% more efficient than A and C is 40% less efficient
than B. A, B and C together can complete the whole work
in 5 days, then find in how many days B alone can
complete the whole work?
1
12 days
2
10 days
3
15 days
4
20 days
5
23 days
6. A and B both can complete the work in 16 days. In how
many days A alone can complete the work if efficiency of
B and A are in ratio 3 : 4 respectively?
1
28 days
2
26 days
3
24 days
4
12 days
5
None
7. A and B can do a piece of work in 12 days. B and C can do
it in 15 days while C and A can do it in 20 days. In how
long will they complete it cooperating?
1
25
2
10
3
30
4
20
5
26
8. A tank has two inlet pipe which can fill the tank in 3 hours
and 4 hours respectively and has one outlet pipe which
can empty the tank in 6 hours. If all the pipes work
together then in how many hours the tank will be filled?
1
5/12 hours
2
11/12 hours
3
12/5 hours
4
5/9 hours
5
7/12 hours
9. 6 outlets working 3 hours a day can empty a filled cistern
in 12 days. How much such outlets working 4 hours a day
will empty the same cistern in 6 days?
1
4
2
5
3
8
4
9
5
2
10. Pipe A fill a cistern in 9 hours and pipe B empty the cistern
in 12 hours. How much time will be taken to fill the empty
cistern, if both the pipes are opened simultaneously?
1
36 hours
2
39 hours
3
42 hours
4
45 hours
5
30 hours
11. Pipes A and B together take 20 hours, B and C together
take 15 hours, and C and A together take 12 hours to fill a
tank. In what time will the tank be filled if all 3 pipes work
together?
1
10 hours
2
15 hours
3
12.5 hours
4
5 hours
5
7.5 hours
12. Pipe A can fill a tank in 6 hours. Due to a leak at the
bottom, it takes 9 hours for the pipe A to fill the tank. In
what time can the leak alone empty the full tank.
1
54
2
20
3
15
4
18
5
None
13. Pipe A can fill the tank in 3 hours and pipe B can fill the
tank in 5 hours pipe C can empty tank 15 hours then find
in how many hours tank will be filled when they work
alternatively starting from B?
1
11/3
2
19/3
3
25/9
4
12/5
5
None
14. A can do the work in 20 days, while B alone can assemble
it in 30 days. If they construct it together and get an
installment of Rs. 6300. What is B's offer?
1
Rs. 5620
2
Rs. 4520
3
Rs. 6750
4
Rs. 1850
5
Rs. 2520
