Time and Work + Pipe and Cistern
Banking
/Ssc/Mat/Clat/Railway All govt. exams
- A and B working together can do a piece of work in 4 ½ hours. B and C working together can do it in 3 hours. c and A working together can do it in 2 ¼ hours. All of them begin the work at the same time. find how much time they will take to finish the piece of work?
a.
1 hr.
b.
2 hr.
c.
2.5 hr.
d. ½ hr
2. A can do a piece of work in 12 days and B in 15 days. They work together for 5 days and then B left. The days were taken by A to finish the remaining work is?
a.
3 days.
b.
5 days.
c.
6 days.
d.
1.5 days
3. 3. How many
men need to be employed to complete a job in 5 days if 15 men can complete
1/3 of the job in 7 days?
a.
21.
b.
42.
c.
63.
d.
84.
4. 4. X can copy 80 pages in 20 hours, X and Y
together can copy 135 pages in 27 hours. then Y can copy 20 pages in
a.
5 hrs.
b.
12 hrs.
c.
24hrs.
d.
20 hrs.
5. 5. A and B can do pieces of Work in 28 and 35 days respectively. they began
to work together but A leaves after
sometimes and B completed the remaining work in 17 days. after how many days did A
leave?
a.
14 2/5 days
b.
9 days
c.
8 days
d.
7 5/9 days
6. 6. A and B together can complete a job in 8 days.
Both B and C, working alone can finish the same job in 12 days. A and B can
commence work on the job, and work for 4 days, whereupon A leaves. B Continues for 2 more days, and then he leaves too. C now starts working, finishes the job. how
many days did c require?
a.
3 days
b.
5 days
c.
6 days
d.
4 days
7. 7. Ram and Hari can cut 12 kg nuts in 2 days.
after 5 days, Hari left work. ram took 8 more days to cut the rest of the
nuts. if the total of 58 kgs of nuts were cut, the time taken by hari to cut 10
kgs of nuts is?
a.
1 day.
b.
2 days.
c.
3days.
d.
4 days.
8. 8. If 6 men and 8 boys can do a piece of work in 10
days and 26 men and 48 boys can do the same job in 2 days, then the time is taken by 15 men and 20 boys to do the same type of work will be?
a.
3 days
b.
4 days.
c.
6days.
d.
7days.
9. 9. Dhiru can dig 1/a of a field in 20 hours. what
fraction of the same field can Kaku dig in 20 hours if two of them can dig the field in 60 hours, working together at their respective rates?
a.
a-3/3a
b.
1/3a
c.
a-3/a
110.
Work done by (x+4) men in (x+5) days is equal to
work done by (x-5) men in (x+20) days. then the value of x is?
a.
15
b.
30
c.
20
d.
25
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