MCQs of Time and work - Quantitative Aptitude

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Showing 21 to 30 out of 40 Questions
21
1 man or 2 women or 3 boys can do a work in 44 days. Then in how many days will 1 man, 1 woman and 1 boy do the work?
(a) 24
(b) 48
(c) 36
(d) 40
Answer:

Option (a)

22
8 men can complete a piece of work in 20 days. 8 women can complete the same work in 32 days. In how many days will 5 men and 8 women together complete the same work?
(a) 10
(b) 12
(c) 14
(d) 16
Answer:

Option (d)

23
A and B can do a piece of work in 5 days, B and C can do it in 7 days, A and C can do it in 4 days. Who among these will take the least time if put to do it alone?
(a) A
(b) B
(c) C
(d) Data inadequate
Answer:

Option (a)

24
A and B can do a piece of work in 72 days, B and C can do it in 120 days while A and C can do it in 90 days. In what time can A alone do it?
(a) 80
(b) 100
(c) 150
(d) 120
Answer:

Option (d)

25
A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days only. In how many days will A alone build up the remaining part of the wall?
(a) 6
(b) 7
(c) 7
(d) 13
Answer:

Option (c)

26
A can complete a piece of work in 10 days, B in 15 days and C in 20 days. A and C worked together for 2 days and then A was replaced by B. In how many days, altogether, was the work completed?
(a) 6
(b) 8
(c) 10
(d) 12
Answer:

Option (b)

27
A can complete a piece of work in 9 days and B in 12 days respectively. If they work for a day alternately. In how many days the work would be finished. If A begins the work?
(a) 31/4
(b) 41/4
(c) 43/4
(d) 11
Answer:

Option (b)

28
A can do a piece of work in 36 days, B in 54 days and C in 72 days. All the three began the work together, but A left before 8 days and B 12 days before the completion of the work. In how many days the work was finished from the day it stared?
(a) 24
(b) 28
(c) 36
(d) 48
Answer:

Option (a)

29
A can do in one day three times the work done by B in one day. They together finish of the work in 9 days. The number of days by which B can do the work alone is?
(a) 90
(b) 120
(c) 100
(d) 30
Answer:

Option (a)

30
A can do piece of work in 15 days, which B can do in 10 days. B worked at it for 8 days. A can finish the remaining work in?
(a) 2
(b) 3
(c) 5
(d) 10
Answer:

Option (b)

Showing 21 to 30 out of 40 Questions