Online Quantitative Aptitude Test On - Time and Work - Online Test Part - 4

Time and Work Online Test Part - 4

Exam Name - Quantitative Aptitude
Subject Name - Time and Work
Exam Type - Multiple Choice Questions
No Of Questions - 10

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Question - 1:A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work??

1. 40
2. 50
3. 54
4. 60

Show/Hide Answer

Answer = D - 60
Explanation: No Explanation

Question - 2:A takes twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days, can do the work alone in ?

1. 4 days
2. 6 days
3. 12 days
4. 15 days

Show/Hide Answer

Answer = B -6 days
Explanation: Suppose A,B and C take x,x/2 and x/3 hours respectively to finish the work.
Then, (1/x+2/x+3/x)
= 1/2
<=> 6/x=1/2
<=> 12.
So, B takes 6 hours to finish the work.

Question - 3:A and B can do a piece of work in 18 days ; B and C can do it in 24 days; A and C can do it in 36 days. In how many days can they do it all working together?

1. 12
2. 13
3. 16
4. 26

Show/Hide Answer

Answer = C - 16
Explanation: No Explanation

Question - 4:P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work? ?

1. 60/11
2. 75
3. 70
4. 80

Show/Hide Answer

Answer = A - 60/11
Explanation: No Explanation

Question - 5:Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages??

1. 7 hours 30 minutes
2. 8 hours
3. 8 hours 15 minutes
4. hours 25 minutes

Show/Hide Answer

Answer = C - 8 hours 15 minutes
Explanation: No Explanation

Question - 6:A and B together can do a piece of work in 12 days, which B and C together can do in 16 days. After A has been working at it for 5 days and B for 7 days, C finishes in 13 days. In how many days C alone will do the work ? ?

1. 16
2. 24
3. 36
4. 48

Show/Hide Answer

Answer = B - 24
Explanation: No Explanation

Question - 7:10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work? ?

1. 3
2. 5
3. 7
4. 9

Show/Hide Answer

Answer = C - 7
Explanation: No Explanation

Question - 8:A can finish a work in 18 days and B can do the same in half the time taken by A. Then, working together , what part of the same work they can finish in a day? ?

1. 1/6
2. 1/7
3. 1/9
4. 1/10

Show/Hide Answer

Answer = A - 1/6
Explanation: A's 1 day's work = 1/18
and B's 1 day's work = 1/9
(A+B)'s 1 day's work = (1/18+1/9)
= 1/6

Question - 9:45 men can complete a work in 16 days. Six after they started working, 30 more men joined them. How many days will they now take to complete the remaining work ? ?

1. 4
2. 5
3. 6
4. 8

Show/Hide Answer

Answer = C - 6
Explanation: No Explanation

Question - 10:X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last? ?

1. 6 days
2. 10 days
3. 15 days
4. 20 days

Show/Hide Answer

Answer = B -10 days
Explanation: No Explanation

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