1728 + Mcqs in Time and Work Page 32 McqOptions

1551.	A works twice as fast as B.If B can complete a work in 18 days independently,the number of days in which A and B can together finish the work is:
A.	4 days
B.	6 days
C.	8 days
D.	10 days
Answer» C. 8 days

Discussion

1552.	The ratio of efficiency of A is to C is 5:3. The ratio of number of days taken by B is to C is 2:3. A takes 6 days less than C, when A and C completes the work individually. B and C started the work a
A.	4.5
B.	5
C.	6
D.	9 1/3
Answer» D. 9 1/3

Discussion

1553.	A is thrice efficient as B and C is twice as efficient as B. what is the ratio of number of days taken by A,B and C, when they work individually?
A.	2:6:3
B.	2:3:6
C.	1:2:3
D.	3:1:2
Answer» B. 2:3:6

Discussion

1554.	9 men working 7 hours a day can finish a bit of work in 15 days. In how long can 6 men functioning for 9 hours a day, complete the same bit of work?
A.	63/4 days
B.	16 days
C.	67/4 days
D.	35/2 days
Answer» E.

Discussion

1555.	A does half as much work as B in three ?fourth of the time. On the off chance that together they take 18 days to finish the work, the amount of time might B takes to do it?
A.	30 days
B.	35 days
C.	40 days
D.	none of these
Answer» B. 35 days

Discussion

1556.	A can do a bit of work in 10 days and B can do it in 20 days. They begin the work together . Be that as it may, following 5 days, A leaves off. B will do the remaining work in
A.	5 days
B.	6 days
C.	8 days
D.	10 days
Answer» B. 6 days

Discussion

1557.	A can do a bit of work in 24 days while B alone can do it in 16 days. With the help of C, they can complete the work in 8 days. C alone can take every necessary step in
A.	32 days
B.	36 days
C.	40 days
D.	48 days
Answer» E.

Discussion

1558.	A and B together can finish a bit of work in 12 days, B and C can do it in 20 days and C and A do it 15 days. A, B and C together can finish it in
A.	6 days
B.	9 days
C.	10 days
D.	21/2 days
Answer» D. 21/2 days

Discussion

1559.	A can do a bit of work in 8 hours while B along can do it in 12 hours. Both A and B cooperating can complete the work in:
A.	10 hours
B.	4 hours
C.	21/4 hours
D.	24/5 hours
Answer» E.

Discussion

1560.	A is twice efficient as B and together they do the same work in as much time as C and D together. If C and D can complete the work in 20 and 30 daysrespectively, working alone ,then in how many days A
A.	12 days
B.	18 days
C.	24 days
D.	30 days
Answer» C. 24 days

Discussion

1561.	Four pipes A,B, C and D can fill a cistern in 20,25, 40 and 50 hours respectively.The first pipe A was opened at 6:00 am, B at 8:00 am, C at 9:00 am and D at 10:00 am. when will the Cistern be full?
A.	4:18 pm
B.	3:09 pm
C.	12:15 pm
D.	11:09 am
Answer» B. 3:09 pm

Discussion

1562.	A and B can do a work in 4 hours and 12 hours respectively. A starts the work at 6 AM and they work alternately for one hour each. When will the work be completed?
A.	4 days
B.	5 days
C.	6 days
D.	7 days
Answer» D. 7 days

Discussion

1563.	A, B and C can complete a piece of work in 24,6 and 12 days respectively.Working together, they will complete the same work in:
A.	1/24 days
B.	7/24 days
C.	24/7 days
D.	4 days
Answer» D. 4 days

Discussion

1564.	A takes three times as long as B and C together to do a job. B takes four times as long as A and C together to do the same work, If all three, working together can complete the job in 24 days, then th
A.	100
B.	96
C.	95
D.	90
Answer» C. 95

Discussion

1565.	12 men take 36 days to do a work while 12 ladies complete 3/fourth of the same work in 36 days. In how long 10 men and 8 ladies together will finish the same work?
A.	6 days
B.	12 days
C.	27 days
D.	none of these
Answer» E.

Discussion

1566.	A does 4/5th of a work in 20 days. He then assembles in B and they complete the remaining work in 3 days. To what extent B alone would take to do the entire work?
A.	23 days
B.	37 days
C.	75/2 days
D.	40 days
Answer» D. 40 days

Discussion

1567.	A and B attempted to do a bit of work for rs .4500. An alone could do it in 8 days and B alone in 12 days. With the help of C, they completed the work in 4 days. C's offer of cash is:
A.	375
B.	750
C.	1500
D.	2250
Answer» C. 1500

Discussion

1568.	If 5 men or 9 ladies can complete a bit of work in 19 days, 3 men and 6 ladies will do likewise work in
A.	10 days
B.	12 days
C.	13 days
D.	15 days
Answer» E.

Discussion

1569.	X can do a piece of work in 25 days. Y is 25% more efficient than X. The number of days taken by Y is
A.	15 days
B.	20 days
C.	21 days
D.	30 days
Answer» C. 21 days

Discussion

1570.	A mason can build a tank in 12 h. After working for 6 h, he took the help of a boy and finished the work in another 5 h. The time that the boys will take alone to complete the work is
A.	30 h
B.	45 h
C.	60 h
D.	64 h
Answer» D. 64 h

Discussion

1571.	A can finish a work in 15 days, B in 20 days and C in 25 days. All these worked together and earned Rs. 4700. The share of C is
A.	Rs. 1200
B.	Rs. 1500
C.	Rs. 1800
D.	Rs. 2000
Answer» B. Rs. 1500

Discussion

1572.	X can do a work in 16 days. In how many days will the work be completed by Y, if the efficiency of Y is 60% more than that of X?
A.	10 days
B.	12 days
C.	25 days
D.	30 days
Answer» B. 12 days

Discussion

1573.	4 men, 6 women and 8 children can complete a work in 11 days. A woman does double the work a man does and a child does the half the work a man does. How many women alone can do the same work in 11 day
A.	8 woman
B.	10 woman
C.	17 woman
D.	21 woman
Answer» C. 17 woman

Discussion

1574.	A’s 2 days work is equal to B’s 3 days work. If A can complete the work in 8 days then to complete the work B will take:
A.	14 days
B.	12 days
C.	15 days
D.	16 days
Answer» C. 15 days

Discussion

1575.	X completes a job in 2 days and Y completes it in 3 days and Z takes 4 days to complete it. If they work together and get Rs. 3900 for the job, then how much amount does Y get?
A.	Rs. 1800
B.	Rs. 1200
C.	Rs. 900
D.	Rs. 800
Answer» C. Rs. 900

Discussion

1576.	A, B and C can do a piece of work individually in 8, 10 and 15 days, respectively. A and B start working but A quits after working for 2 days. After this, C joins B till the completion of work. In how
A.	53/9 days
B.	34/7 days
C.	85/13 days
D.	53/10 days
Answer» E.

Discussion

1577.	A can do a piece of work in ‘x’ days and B can do the same work 3x days. To finish the work together they take 12 days. What is the value of ‘x’?
A.	8
B.	10
C.	12
D.	16
Answer» E.

Discussion

1578.	A and B can do a piece of work in 10 h. B and C can do it in 15 h, while A and C take 12 h to complete the work. B independently can complete the work in
A.	12 h
B.	16 h
C.	20 h
D.	24 h
Answer» E.

Discussion

1579.	A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days. A finished the remaining work. The number of days in which B alone can finish th
A.	50
B.	48
C.	54
D.	60
Answer» E.

Discussion

1580.	A, B and C can do a piece of work in 24, 30 and 40 days respectively. They began the work together but C left 4 days before completion of the work. In how many days was the work done?
A.	14
B.	11
C.	12
D.	13
Answer» C. 12

Discussion

1581.	A can do a piece of work in 4 days and B can complete the same work in 12 days. What is the number of days required to do the same work together?
A.	2 days
B.	3 days
C.	4 days
D.	5 days
Answer» C. 4 days

Discussion

1582.	A and B can do a piece of work in 15 days. B and C can the same work in 10 days and A and C can do the same in 12 days. Time taken by A, B and C together to do the job is
A.	8 days
B.	9 days
C.	4 days
D.	5 days
Answer» B. 9 days

Discussion

1583.	A single person takes 10 minutes to stitch a bag. If from 10.00 a.m. to 12.30 p.m., 1245 bags are to be stitched how many persons should be employed on this job?
A.	81
B.	82
C.	83
D.	84
Answer» D. 84

Discussion

1584.	4 girls can do a piece of work in 8 days, same work 3 boys can do in 9 days, 7 men in 2 days and 5 women in 4 days. Who among them have the minimum capacity of work?
A.	Boy
B.	Girl
C.	28 days
D.	42 days
Answer» C. 28 days

Discussion

1585.	A is twice as good a workman as B and together they finish a piece of work in 14 days. The number of days taken by A alone to finish the work is
A.	11 days
B.	21 days
C.	28 days
D.	42 days
Answer» C. 28 days

Discussion

1586.	‘A’ can complete a piece of work in 12 days ‘A’ and ‘B’ together can complete the same piece of work in 8 days. In how many days can ‘B’ alone complete the same piece of work?
A.	15 days
B.	18 days
C.	24 days
D.	28 days
Answer» D. 28 days

Discussion

1587.	A, B and C can complete a work separately in 24, 36 and 48 days respectively. They started together but C left after 4 days of start and A left 3 days before the completion of the work. In how many d
A.	15 days
B.	22 days
C.	25 days
D.	35 days
Answer» B. 22 days

Discussion

1588.	A can do a piece of work in 20 days and B can do the same piece of work in 30 days. Find in how many days both can do the work?
A.	28
B.	20
C.	34
D.	12
Answer» E.

Discussion

1589.	18 women can complete a work in 12 days and 12 men can complete the same work in 9 days. In how many days will 8 men and 8 women complete that work?
A.	9
B.	6
C.	12
D.	8
Answer» B. 6

Discussion

1590.	A and B together can complete a task in 20 days. B and C together can complete the same task in 30 days. A and C together can complete the same task in 40 days. What is the respective ratio of the num
A.	2 : 5
B.	2 : 7
C.	3 : 7
D.	1 : 5
Answer» E.

Discussion

1591.	A can do the 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
A.	5 days
B.	7 days
C.	11 days
D.	3 days
Answer» B. 7 days

Discussion

1592.	If A and B together can finish a piece of work in 20 days, B and C in 10 days and C and A in 12 days, then A, B, C jointly can finish the same work in
A.	5 : 3
B.	5 : 2
C.	7 : 4
D.	7 : 3
Answer» C. 7 : 4

Discussion

1593.	X is 3 times as fast as Y and is able to complete the work in 40 days less than Y. Then the time in which they can complete the work together is
A.	15 days
B.	10 days
C.	8 days
D.	5 days
Answer» B. 10 days

Discussion

1594.	A works alone, he would take 4 days more to complete the job than if both A and B worked together. If B worked alone, he would take 16 days more to complete the job than if both A and B work together.
A.	10 days
B.	12 days
C.	6 days
D.	8 days
Answer» E.

Discussion

1595.	A and B together can complete a particular task in 4 days. If A alone can complete the same task in 12 days. How many days will B take to complete the task if he works alone?
A.	9 days
B.	7 days
C.	5 days
D.	None of these
Answer» E.

Discussion

1596.	6 women 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 and 10 children together take to complete the pie
A.	7
B.	8
C.	6
D.	4
Answer» D. 4

Discussion

1597.	A and B together can finish a work in 9 days. A alone can finish the work in 12 days. In how many days will B alone finish the work?
A.	24
B.	28
C.	32
D.	36
Answer» E.

Discussion

1598.	Ashokan is thrice as good a workman as Nitin and is therefore able to finish a piece of work in 40 days less than Nitin. Find the time in which they can do it working together.
A.	15 days
B.	7 days
C.	16 days
D.	13 days
Answer» B. 7 days

Discussion

1599.	A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?
A.	6 hours
B.	12 hours
C.	4 hours
D.	8 hours
Answer» C. 4 hours

Discussion

1600.	2 men 3 women and a boy can complete a job in 3, 4 and 12 days respectively. How many boys must assist one men one women to complete the job in 1/4 of a day?
A.	13
B.	17
C.	27
D.	45
Answer» E.

Discussion

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