Quiz Discussion

A job can be done by 3 skilled workmen in 20 days or by 5 boys in 30 days. How many days will they take if they work together ?

Course Name: Quantitative Aptitude

  • 1] 8 days
  • 2] 10 days
  • 3] 11 days
  • 4] 12 days
Solution
No Solution Present Yet

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# Quiz
1
Discuss

Two typists of varying skills can do a job in 6 minutes if they work together. If the first typist typed alone for 4 minutes and then the second typist typed alone for 6 minutes, they would be left with \(\frac{1}{5}\) of the whole work. How many minutes would it take the slower typist to complete the typing job working alone?

 

  • 1] 10 minutes
  • 2] 15 minutes
  • 3] 12 minutes
  • 4] 20 minutes
  • 5] 17 minutes
Solution
2
Discuss

Two pipes, P and Q can fill a cistern in 12 and 15 minutes respectively. Both are opened together, but at the end of 3 minutes, P is turned off. In how many more minutes will Q fill the cistern?

  • 1]

    7 minutes

  • 2]

    \(7\frac{1}{2}\) minutes

  • 3]

    8 minutes

  • 4]

    \(8\frac{1}{4}\) minutes

Solution
3
Discuss

A and B can do a piece of work in 12 days, B and C in 8 days and C and A in 6 days. How long would B take to do the same work alone ?

  • 1] 24 days
  • 2] 32 days
  • 3] 40 days
  • 4] 48 days
Solution
4
Discuss

A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

  • 1] Rs. 375
  • 2] Rs. 400
  • 3] Rs. 600
  • 4] Rs. 800
Solution
5
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
6
Discuss

Two workers A and B are engaged to do a piece of work. A working alone would take 8 hours more to complete the work that when work together. If B worked alone, would take \({ \text{4}}\frac{1}{2}\) hours more than when working together. The time required to finish the work together is =?

 

  • 1] 5 hours
  • 2] 8 houras
  • 3] 4 hours
  • 4] 6 hours
Solution
7
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
8
Discuss

A contractor undertook to finish a work in 92 days and employed 110 men. After 48 days, he found that he had already done \(\frac{3}{5}\) part of the work, the number of men he can withdraw so that his work may still be finished in time is?

 

  • 1] 45
  • 2] 40
  • 3] 35
  • 4] 30
Solution
9
Discuss

If A, B and C can complete a piece of work in 6 days. If A can work twice faster than B and thrice faster then C, than the number of days C alone can complete the work is ?

  • 1] 44 days
  • 2] 33 days
  • 3] 22 days
  • 4] 11 days
Solution
10
Discuss

At a Tech Pvt Ltd. there are some engineering students employed as trainee engineers, belong to two eminent institutions of India. One group belongs to IIT and another to NIT. Each student of IIT works for 10 hours a day till 60 days and each student of NIT works for 8 hours a day till 80 days on the two same project. The ratio of students of IIT and that of NIT is 4:5 respectively. Students of which institution is slower in work and by how much?

  • 1] IITian is 20% less efficient
  • 2] NITian is 33.33% less efficien
  • 3] NIT is 25% less efficient
  • 4] IIT is 33.33% less efficient
  • 5] Cannot be determined
Solution
# Quiz