Quiz Discussion

A can do a work in 15 days and B in 20 days. If they together work on it for 4 days, what fraction of the work will be left ? 

Course Name: Quantitative Aptitude

  • 1]

    1/13

  • 2]

    6/11

  • 3]

    9/17

  • 4]

    8/15

Solution
No Solution Present Yet

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# Quiz
1
Discuss

Three taps A, B and C together can fill an empty cistern in 10 minutes. The tap A alone can fill it in 30 minutes and the tap B alone in 40 minutes. How long will the tap C alone take to fill it?

  • 1] 16 minutes
  • 2] 24 minutes
  • 3] 32 minutes
  • 4] 40 minutes
Solution
2
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
3
Discuss

A and B can separately complete a piece of work in 20 days and 30 days respectively. They worked together for some time. Then B left the work. If A completed the rest of the work in 10 days, then B worked for

  • 1]

    6 days

  • 2]

    8 days

  • 3]

    12 days

  • 4]

    16 days

Solution
4
Discuss

A can do in one day three times the work done by B in one day. They together finish \(\frac{2}{5}\) of the work in 9 days. The number of days by which B can do the work alone is =?

 

  • 1] 90 days
  • 2] 120 days
  • 3] 100 days
  • 4] 30 days
Solution
5
Discuss

A does half as much work as B in one-sixth of the time. If together they take 10 days to complete a work. How much time shall B alone take to do it ?

  • 1] 30 days
  • 2] 40 days
  • 3] 50 days
  • 4] 70 days
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

P is thrice as good a workman as Q and therefore able to finish a job in 48 days less than Q. Working together, they can do it in ?

  • 1] 18 days
  • 2] 24 days
  • 3] 30 days
  • 4] 12 days
Solution
8
Discuss

There are three boats A, B and C, working together they carry 60 people in each trip. One day an early morning A carried 50 people in few trips alone. When it stopped carrying the passengers B and C started carrying the people together. It took a total of 10 trips to carry 300 people by A, B and C. It is known that each day on an average 300 people cross the river using only one of the 3 boats A, B and C. How many trips it would take to A to carry 150 passengers alone?

  • 1] 15
  • 2] 30
  • 3] 25
  • 4] 10
  • 5] None of these
Solution
9
Discuss

A can do a work in 10 days. The efficiency of A is 20% less than B. How many days B need to finish the same work?

  • 1] 8.5 days
  • 2] 12.3 days
  • 3] 8 days
  • 4] 7.5 days
Solution
10
Discuss

If one pipe A can fill a tank in 20 minutes, then 5 pipes, each of 20% efficiency of A, can fill the tank in:

  • 1] 80 min
  • 2] 100 min
  • 3] 20 min
  • 4] 25 min
Solution
# Quiz