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339 WorkRate1 |
Name : _________________ |
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9 people can do a job in 11 days. How many days would it take if there were only 3 people? |
49 people can do a job in 9 days. How many days would it take if there were only 7 people? |
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| 339 33 36 63 24 72 ( 228 ) 63 32 40 21 36 ( 192 ) [[ 420 ]] | ||
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