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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# Quiz
1
Discuss

A does 20% less work than B. If A can complete a piece of work in \({ \text{7}}\frac{1}{2}\) hours, then B can do it in?

 

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

A, B and C completed a work costing Rs. 1800. A worked for 6 days, B for 4 days and C for 9 days. If their daily wages are in the ratio of 5 : 6 : 4, how much amount will be received by A ?

  • 1] Rs. 600
  • 2] Rs. 750
  • 3] Rs. 800
  • 4] Rs. 900
Solution
3
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
4
Discuss

X takes 4 days to complete one-third of a job. Y takes 3 days to complete one-sixth of the job and Z takes 5 days to complete half the job. If all of them work together for 3 days and X and Z quit, how long will it take for Y to complete the remaining work done.

  • 1] 6 days
  • 2] 8.1 days
  • 3] 5.1 days
  • 4] 7 days
  • 5] None of these
Solution
5
Discuss

Two persons having different productivity of labour, working together can reap a field in 2 days. If one-third of the field was reaped by the first man and rest by the other one working alternatively took 4 days. How long did it take for the faster person to reap the whole field working alone?

  • 1] 3
  • 2] 6
  • 3] 8
  • 4] 12
  • 5] None of these
Solution
6
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
7
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
8
Discuss

A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:

  • 1]

    5 days

  • 2]

    6 days

  • 3]

    10 days

  • 4]

    10* 1/2 days

Solution
9
Discuss

Ganga and Saraswati, working separately can mow field in 8 and 12 hours respectively. If they work in stretches of one hour alternately. Ganga is beginning at 9 a.m., when will the moving be completed?

  • 1] 6:20 PM
  • 2] 6:30 PM
  • 3] 6:36 PM
  • 4] 6:42 PM
Solution
10
Discuss

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

  • 1] 12 days
  • 2] 15 days
  • 3] 16 days
  • 4] 18 days
Solution
# Quiz