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A can do a piece of work in 14 days whic...

A can do a piece of work in 14 days which B can do in 21 days. They begin together but 3 days before the completion of the work, A leaves off. The total number of days to complete the work is `6 3/5` b. `8 1/2` c. `10 1/5` d. `13 1/2`

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RS AGGARWAL-TIME AND WORK-All Questions
  1. A started a work and left after working for 2 days. Then B was calle...

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  2. Working together, Asha and Sudha can complete an assigned task in 20 d...

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  3. A can do a piece of work in 14 days which B can do in 21 days. They...

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  4. A, B and C can complete a work separately in 24, 36 and 48 days res...

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  5. A, B and C can complete a work in 10, 12 and 15 days respectively. T...

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  6. A, B and C together earn Rs. 300 per day, while A and C together ea...

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  7. A, B and C are employed to do a piece of work for Rs. 529. A and B tog...

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  8. Kim can do a work in 3 days while David can do the same work in 2 da...

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  9. If A can do 1/4 of a work in 3 days and B can do 1/6 of the same work ...

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  10. A man and a boy received Rs. 800 as wages for 5 days for the work th...

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  11. Two men undertake to do a piece of work for Rs. 1400. The first man...

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  12. A sum of money is sufficient to pay A's wages for 21 days and B's w...

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  13. A can do a piece of work in 10 days; B in 15 days. They work for 5 ...

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  14. The daily wages of a worker are Rs. 100. Five workers can do a work...

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  15. A and B together can complete a work in 12 days. A alone can comple...

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  16. A,B and C completes a piece of work costing Rs. 1800. A worked for 6 d...

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  17. A and B can complete a piece of work in 12 and 18 days respectively....

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  18. A , B and C can do a piece of work in 11 days, 20 days and 55 days re...

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  19. A, B and C can do a piece of work in 20, 30 and 60 days respectively. ...

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  20. A can do a piece of work in 90 days, B in 40 days and C in 12 days. Th...

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