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639 WorkRate1 |
Name : _________________ |
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36 people can do a job in 11 days. How many days would it take if there were only 6 people? |
6 people can do a job in 5 days. How many days would it take if there were only 2 people? |
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| 639 66 77 40 60 18 ( 261 ) 15 24 84 48 66 ( 237 ) [[ 498 ]] | ||
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