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In a certain factory there are five w...

In a certain factory there are five workers `A ,\ B ,\ C ,\ D` and `E` . `A` can complete a work in 4 minutes, `B` in 5 minutes, `C` in 6 minutes, `D` in 10 minutes and `E` in 12 minutes. The average number of units of work completed per worker per minute will be (a) 0.16 (b) 0.172 (c) 0.80 (d) 0.87

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RS AGGARWAL-TIME AND WORK-All Questions
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  3. In a certain factory there are five workers A ,\ B ,\ C ,\ D and E ...

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  5. A can knit a pair of socks in 3 days. B can knit the same pair in 9...

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  6. A can complete a work in 6 days while B can complete the same work ...

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  7. A can do a piece of work in 8 days and B can do the same piece of work...

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  8. George takes 8 hours to copy a 50-page manuscript while Sonia can c...

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  9. A and B together complete a piece of work in T days. If A alone comple...

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  10. Reena, Aastha and Shloka can independently complete a piece of work...

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  11. A man can do a job in 15 days. His father takes 20 days and his son fi...

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  12. Amit and Sumit can plough a field in 4 days. Sumit alone can plough th...

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  14. A can lay railway track between two given stations in 16 days and B...

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  15. A can complete 1/3 of a work in 5 days and B, 2/5 of the work in 10 da...

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  16. X can do 1/4 of a work in 10 days, Y can do 40% of the work in 40 days...

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  17. A man and a boy together can do a certain amount of digging in 40 d...

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  18. A takes twice as much time as B or thrice as much time as C to fini...

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  19. Work done by A in one day is half of the work done by B in one day. Wo...

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  20. Rosa can eat 32 rosogollas in one hour. Her sister Lila needs three ho...

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