Quiz Discussion

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :

Course Name: Quantitative Aptitude

  • 1]

    4 days

  • 2]

    6 days

  • 3]

    8 days

  • 4]

    12 days

Solution
No Solution Present Yet

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# Quiz
1
Discuss

A completes \(\frac{7}{{10}}\) of the work 15 days. Then he completes the remaining work the help of B in 4 days. The time required for A and B together to complete the entire work is = ?

 

  • 1]

    \({ \text{8}}\frac{1}{4}{ \text{days}}\)

  • 2]

    \(10\frac{1}{2}{ \text{days}}\)

  • 3]

    \(12\frac{2}{3}{ \text{days}}\)

  • 4]

    \(13\frac{1}{3}{ \text{days}}\)

Solution
2
Discuss

A group of 12 men can do a piece of work in 14 days and other group of 12 women can do the same work in 21 days. They begin together but 3 days before the completion of work, man's group leaves off. The total number of days to complete the work is:

  • 1]

    \(\frac{{65}}{4}\)

  • 2]

    \(\frac{{93}}{3}\)

  • 3]

    \(\frac{{51}}{5}\)

  • 4]

    60

Solution
3
Discuss

A can do a piece of work in 12 days and B in 24 days. If they work together, in how many days will they finish the work ?

  • 1] 20 days
  • 2] 8 days
  • 3] 12 days
  • 4] 15 days
Solution
4
Discuss

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. In how many days C alone can do the same work ?

  • 1] 5 days
  • 2] 6 days
  • 3] 10 days
  • 4] 12 days
Solution
5
Discuss

A can write 75 pages in 25 hours. A and B together can write 135 pages in 27 hours. In what time can B write 42 pages ?

  • 1] 17 hrs
  • 2] 19 hrs
  • 3] 21 hrs
  • 4] 23 hrs
Solution
6
Discuss

A can do \(\frac{1}{3}\) rd of work in 5 days and B can do the do \(\frac{2}{5}\)th of this work in 10 days. Both A and B, together can do the work in?

 

  • 1]

    \({ \text{ 7}}\frac{3}{8}{ \text{ days}}\)

  • 2]

    \({ \text{8}}\frac{4}{5}{ \text{ days}}\)

  • 3]

    \({ \text{9}}\frac{3}{8}{ \text{ days}}\)

  • 4]

    10 days

Solution
7
Discuss

A is thrice as good a workman as B and so takes 60 days less than B for doing a job. The time in which they can do the job together is = ?

  • 1]

    \(22\frac{1}{2}{ \text{days}}\)

  • 2]

    30 days

  • 3]

    45 days

  • 4]

    60 days

Solution
8
Discuss

A contractor was engaged to construct a road in 16 days. After working for 12 days with 20 labours it was found that only \({\frac{5}{8}}\) th of the road had been constructed. To complete the work in stipulated time the number of extra labours required are ?

 

  • 1] 16
  • 2] 12
  • 3] 10
  • 4] 18
Solution
9
Discuss

A takes 10 days less than the time taken by B to finish a piece of work. If both A and B can do it in 12 days, then the time taken by B alone to finish the work is = ?

  • 1] 30 days
  • 2] 27 days
  • 3] 20 days
  • 4] 25 days
Solution
10
Discuss

A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:

  • 1]

    \(9\frac{1}{5}\) days

  • 2]

    \(9\frac{2}{7}\) days

  • 3]

    \(9\frac{3}{5}\) days

  • 4]

    10

Solution
# Quiz