This set of Aptitude Questions and Answers (MCQs) focuses on “Time and Work – Set 4”.
1. 10 men can do a work in 12 days. Find the time required to do 20% of the work working twice as fast as before.
a) 1 day
b) 2 days
c) 3 days
d) 2.5 days
View Answer
Explanation: The speed is doubled, and the work is made 20% as before.
Th efficiency of the men = 12 / 10 = 1.2 part of the work daily
The new work = 20% of 12 = 2.4 of the work
The new efficiency = twice as before = 1.2 * 2 = 2.4
The time taken = 2.4 / 2.4 = 1 day
2. 25 men can do a work in 5 days. Find the amount of work done by 5 men in 10 days.
a) 25%
b) 30%
c) 35%
d) 40%
View Answer
Explanation: The total work done by 25 men in 5 days = 25 * 5 = 125 units
The work done by 5 men in 10 days = 50 units
The percentage of the work done = 50 / 125 * 100 = 40%
3. 67 men can do a work in 50 days. Find the amount of work done by 60 men in 42 days.
a) 57.22%
b) 75.22%
c) 56.22%
d) 65.22%
View Answer
Explanation: The total work to be done = 67 * 50 = 3350 units
The work done = 60 * 42 = 2520 units
The percentage done = 2520 / 3350*100 = 75.22%
4. 34 men can do a piece of work in 60 days. Find the amount of work done by 65 men in 20 days.
a) 63.72%
b) 64.72%
c) 63.82%
d) 64.82%
View Answer
Explanation: The total work to be done = 60 * 34 = 2040 units
The amount of work done = 65 * 20 = 1300 units
The percentage of work done = 1300 / 2040*100 = 63.72%
5. 128 men can do a piece of work in 78 days. Find the amount of work done by 4 men in 1200 days.
a) 47%
b) 48%
c) 49%
d) 50%
View Answer
Explanation: The total amount of work to be done = 128 * 78 = 9984 units
The amount of work done = 1200 * 4 = 4800 units
The percentage of work done = 4800 / 9984*100 = 48.07%
6. A group of 231 men can do a piece of work in 12 days. Find the amount of work done by 23 men in 121 days.
a) 106.25%
b) 102.65%
c) 105.62%
d) 105.26%
View Answer
Explanation: The amount of work to be done = 231* 12 = 2771 units
The amount of work done = 121* 23 = 2783
The percentage of work done = 2783 / 2771*100 = 102.65%
7. A group of 5 men can do a piece of work in 78 days. Find the amount of work done by 4 men in 68 days.
a) 69%
b) 70%
c) 71%
d) 72%
View Answer
Explanation: The total work to be done = 78 * 5 = 390 units
The total work done = 4 * 68 = 272 units
The percentage of work done = 272 / 390*100 = 69.74%
8. 90 men can do a piece of work in 67 days. Find the amount of work done by 78 men in 45 days.
a) 50%
b) 54%
c) 58%
d) 62%
View Answer
Explanation: The total work to be done = 90 * 67 = 6030 units
The total work done = 78 * 45 = 3510 units
The percentage of work done = 3510 / 6030 * 100 = 58.20%
9. 120 men can do a piece of work in 98 days. Find the amount of work done by 67 men in 77 days.
a) 42%
b) 43%
c) 44%
d) 45%
View Answer
Explanation: The total work to be done = 120 * 98 = 11760 units
The amount of work done = 67 * 77 = 5159 units
The percentage of work done = 43.86%
10. 77 men can do a piece of work in 78 days. Find the amount of work done by 88 men in 33 days.
a) 46%
b) 48%
c) 50%
d) 51%
View Answer
Explanation: The total work to be done = 77 * 78 = 6006 units
The amount of work done = 88 * 33 = 2904 units
The amount of work completed = 2904 / 6006*100 = 48.35%
To practice all aptitude questions, please visit “1000+ Quantitative Aptitude Questions”, “1000+ Logical Reasoning Questions”, and “Data Interpretation Questions”.
If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]
