Quiz Discussion

Three pipes A,B and C attached to a cistern. A can fill it in 10 min, B in 15 min, C is a waste pipe for emptying it. After opening both the pipes A and B, a man leaves the cistern and returns when the cistern should have been just full. Finding, however, that the waste pipe had left open, he closes it and the cistern now gets filled in 2 min. In how much time the pipe C, if opened alone, empty the full cistern?

Course Name: Quantitative Aptitude

  • 1] 12 min
  • 2] 16 min
  • 3] 18 min
  • 4] 15 min
  • 5] None of these
Solution
No Solution Present Yet

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# Quiz
1
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 take to do it alone?

  • 1] 13.33 days
  • 2] 20 days
  • 3] 30 days
  • 4] 40 days
Solution
2
Discuss

A, B and C can complete a piece of work in 24, 5 and 12 days respectively. Working together, they will complete the same work in ?

  • 1]

    \(\frac{7}{{24}}{ \text{days}}\)

  • 2]

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

  • 3]

    4 days

  • 4]

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

Solution
3
Discuss

18 women can complete a work in 12 days and 12 men can complete the same work in 9 days. In how many days will 8 men and 8 women complete that work?

  • 1]

    9

  • 2]

    6

  • 3]

    12

  • 4]

    18

Solution
4
Discuss

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

  • 1]

    15

  • 2]

    16

  • 3]

    18

  • 4]

    25

Solution
5
Discuss

A and B completed a work together in 5 days. had A worked at twice the speed and B at half the speed, it would have taken them four days to complete the job. How much time would it take for A alone to do the work?

  • 1] 10 days
  • 2] 20 days
  • 3] 25 days
  • 4] 15 days
  • 5] 24 days
Solution
6
Discuss

Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?

  • 1] 1 hour
  • 2] 2 hours
  • 3] 3 hours
  • 4] 4 hours
  • 5] 5 hours
Solution
7
Discuss

Five men are working to complete a work in 15 days. After five days 10 women are accompanied by them to complete the work in next 5 days. If the work is to be done by women only, then in how many days could the work be over if 10 women have started it ?

  • 1] 10 days
  • 2] 12 days
  • 3] 15 days
  • 4] 18 days
Solution
8
Discuss

A and B together can complete a job in 8 days. Both B and C, working alone can finish the same job in 12 days, A and B commence work on the job, and work for 4 days, where upon A leaves, B continues for 2 more days, and then he leaves too, C now starts working, and finishes the job. How many days will C require to finish the remaining work ?

  • 1] 5 days
  • 2] 8 days
  • 3] 3 days
  • 4] 4 days
Solution
9
Discuss

There is a group of 5 boys and 2 girls. The two groups working together can do four times as much work as a boy and a girl. Ratio of working capacities of a boy and a girl is:

  • 1] 2 : 1
  • 2] 2 : 3
  • 3] 1 : 3
  • 4] 1 : 2
Solution
10
Discuss

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

  • 1]

    20 days

  • 2]

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

  • 3]

    25 days

  • 4]

    30 days

Solution
# Quiz