Quiz Discussion

If m men can do a work in r days, then the number of days taken by (m + n) men to do it is :

Course Name: Quantitative Aptitude

  • 1]

    \(\frac{{{ \text{m}} + { \text{n}}}}{{{ \text{mn}}}}\)

  • 2]

    \(\frac{{{ \text{m}} + { \text{n}}}}{{{ \text{mr}}}}\)

  • 3]

    \(\frac{{{ \text{mr}}}}{{{ \text{m}} + { \text{n}}}}\)

  • 4]

    \(\frac{{{ \text{r}}\left( {{ \text{m}} + { \text{n}}} \right)}}{{{ \text{mn}}}}\)

Solution
No Solution Present Yet

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1
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While working 7 hour a day, A alone can complete a piece of work in 6 days and B alone in 8 days. In what time would they complete it together, 8 hour a day?

  • 1] 3 days
  • 2] 4 days
  • 3] 2.1 days
  • 4] 3.6 days
Solution
2
Discuss

4 mat-weavers can weave 4 mats in 4 days. At the same rate how many mats would be woven by 8 mat-weavers in 8 days ?

  • 1] 4
  • 2] 8
  • 3] 12
  • 4] 16
Solution
3
Discuss

20 men can do a piece of work in 18 days. They worked together for 3 days, then 5 men joined. In how many days is the remaining work completed ?

  • 1] 12 days
  • 2] 14 days
  • 3] 13 days
  • 4] 15 days
Solution
4
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
5
Discuss

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 ?

  • 1] 8 days
  • 2] 10 days
  • 3] 11 days
  • 4] 12 days
Solution
6
Discuss

A, B and C can complete a piece of work in 10, 12 and 15 days respectively. A left the work 5 days before the work was completed and B left 2 days after A had left. Number of days required to complete the whole work was ?

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

A man and a boy received Rs. 800 as wages for 5 days for the work they did together. The man's efficiency in the work was thrice times that of the boy. What are the daily wages of the boy?

  • 1] Rs. 76
  • 2] Rs. 56
  • 3] Rs. 44
  • 4] Rs. 40
Solution
8
Discuss

A can build a wall in the same time in which B and C together can do it. If A and B together can do it. If A and B together could do it in 25 days and C alone in 35 days, in what time could B alone do it ?

  • 1] 91 days
  • 2] 100 days
  • 3] 175 days
  • 4] None of these
Solution
9
Discuss

Vimal can do a piece of work in 20 days, Vimal and Kamal together can do in 12 days. If Kamal does the work only for half a day daily then in how many days the work will be completed ?

  • 1] 14
  • 2] 17
  • 3] 12
  • 4] 15
Solution
10
Discuss

Kamal can do a work in 15 days. Bimal is 50% more efficient then Kamal. The number of days, Bimal will take to do the same piece of work, is = ?

  • 1]

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

  • 2]

    10

  • 3]

    12

  • 4]

    14

Solution
# Quiz