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Two workers A and B working together completed a job in 5 days. If A worked twice as efficient, as he actually did and B worked `1/3` as efficiently as he actually did, the work would have been completed in 3 days. A alone could complete the work in `5 1/4\ d a y s` b. `6 1/4\ \ d a y s` c. `7 1/2d a y s` d. none of these

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Two workers A and B working together completed a job in 5 days. If A worked twice as efficiently as he actually did and B worked 1/3 as efficiently as he actually did, the work would have completed in 3 days. Fine the time for A to complete the job alone.

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RS AGGARWAL-TIME AND WORK-All Questions
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  2. A is 50% as efficient as B.C does half of the work done by A and B ...

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  4. A can do a work in 15 days and B in 20 days. If they work on it tog...

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  5. A can do a piece of work in 15 days, which B can do in 10 days. B w...

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  6. A and B can complete a work in 18 days and 15 days respectively. Th...

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  8. A machine P can print one lakh books in 8 hours, machine Q can print...

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  11. A complete 7/10 of a work in 15 days. After that he completes the work...

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  14. X can do a piece of work in 40 days. He works at it for 8 days and ...

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  15. A, B and C together can complete a piece of work in 10 days. All the t...

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  16. A does 4/5 of a work in 20 days. He then calls B and they together fin...

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  18. A and B can do a piece of work in 12 days and B and C can do the same ...

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