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4 men and 2 boys can finish a piece of w...

4 men and 2 boys can finish a piece of work in 5 days. 3 women and 4 boys can finish the same work in 5 days. Also 2 men and 3 women can finish the same work in 5 days.. In how many days 1 man, 1 woman and one boy can finish the work, at their double efficiency?

A

` 4 (8)/(13)`

B

`4 (7)/(13)`

C

`3 (7)/(13)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
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DISHA PUBLICATION-TIME AND WORK-Practice Exercise (Expert Level)
  1. B and C are equally efficient, but the efficiency of-A is half of each...

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  2. A finishes 6/7th of the work in 2z hours, B works twice as fast A and ...

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  3. 4 men and 2 boys can finish a piece of work in 5 days. 3 women and 4 b...

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  4. The work done by 2 men in a day is equal to the work done by 3 childre...

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  5. It takes 30 hours for an inlet pipe to fill an empty tank completely. ...

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  6. A tank of capacity 25 litres has an inlet and an outlet tap. If both a...

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  7. Ashish, Binay and Joseph can do a job in 20, 30 and 40 days respective...

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  8. Pawan and Qureshi working together can do a piece of work in 10 days w...

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  9. Three cooks have to make 80 idlis. They are known to make 20 pieces ev...

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  10. A cistern has a leak which would empty it in 6 hours. A tap is turned ...

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  11. Tap A can fill a tank in 20 hours, B in 25 hours but tap C can J empty...

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  12. Each of A, B and C need a certain unique time to do a certain work. C ...

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  13. Two men and a woman are entrusted with a task. The second man needs th...

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  14. Two pipes A and B can fill a cistern in 15 hours and ’10 hours respect...

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  15. Working together B and C take 50% more number of days than A,B and C t...

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  16. Eklavya can do the 6 times the actual work in 36 days while Faizal can...

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  17. Sixty-four men working 8 h a day plan to complete a piece of work in 9...

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  18. 4 pipes each of 3 cm diameter are to be replaced by a single pipe disc...

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  19. A can do a job in 3 days less time than B. A works at it alone for 4 d...

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  20. Water flows at 3 metres per sec through a pipe of radius 4 cm. How man...

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