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550 WorkRate1 |
Name : _________________ |
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35 people can do a job in 9 days. How many days would it take if there were only 5 people? |
36 people can do a job in 12 days. How many days would it take if there were only 9 people? |
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| 550 63 20 25 66 24 ( 198 ) 48 49 18 77 63 ( 255 ) [[ 453 ]] | ||
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