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398 WorkRate1 |
Name : _________________ |
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21 people can do a job in 7 days. How many days would it take if there were only 3 people? |
14 people can do a job in 7 days. How many days would it take if there were only 2 people? |
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| 398 49 84 55 16 36 ( 240 ) 49 15 12 24 44 ( 144 ) [[ 384 ]] | ||
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