Quiz Discussion

A and B can complete a piece of work in 12 and 18 days respectively. A begins to do the work and they work alternatively one at a time for one day each. The whole work will be completed in ?

Course Name: Quantitative Aptitude

  • 1]

    \({ \text{14}}\frac{1}{3}{ \text{ days}}\)

  • 2]

    \({ \text{15}}\frac{2}{3}{ \text{ days}}\)

  • 3]

    \({ \text{16}}\frac{1}{3}{ \text{ days}}\)

  • 4]

    \({ \text{18}}\frac{2}{3}{ \text{ days}}\)

Solution
No Solution Present Yet

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# Quiz
1
Discuss

A is 60% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish?

  • 1]

    \(\frac{{124}}{{13}}\) days

  • 2]

    \(\frac{{113}}{{13}}\) days

  • 3]

    \(\frac{{108}}{{13}}\) days

  • 4]

    \(\frac{{131}}{{13}}\) days

  • 5]

    \(\frac{{120}}{{13}}\) days

Solution
2
Discuss

639 persons can repair a road in 12 days working 5 hours a day. In how many days will 30 persons working 6 hours a day complete the work ?

  • 1] 210 days
  • 2] 213 days
  • 3] 214 days
  • 4] 215 days
Solution
3
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
4
Discuss

 

A and B together can finish a work in 9 days. A alone can finish the work in 12 days. In how many days will B alone finish the work?

  • 1]

    24

  • 2]

    28

  • 3]

    32

  • 4]

    36

Solution
5
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
6
Discuss

If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be:

  • 1] 12 days
  • 2] 10 days
  • 3] 9 days
  • 4] 8 days
Solution
7
Discuss

Two pipes A and B can fill a tank in 36 min. and 45 min. respectively. Another pipe C can empty the tank in 30 min. First A and B are opened. After 7 minutes, C is also opened. The tank filled up in:

  • 1] 39 min.
  • 2] 46 min
  • 3] 40 min.
  • 4] 45 min.
Solution
8
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
9
Discuss

If A and B together can complete a work in 18 days, A and C together in 12 days, and B and C together in 9 days, then B alone can do the work in:

  • 1] 18 days
  • 2] 24 days
  • 3] 30 days
  • 4] 40 days
Solution
10
Discuss

A group of workers can complete a piece of work in 50 days, when they are working individually. On the first day one person works, on the second day another person joins him, on the third day one person joins them and this process continues till the work is completed. How many approximate days are needed to complete the work ?

  • 1] 8 days
  • 2] 9 days
  • 3] 10 days
  • 4] 11 days
Solution
# Quiz