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300 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? |
35 people can do a job in 9 days. How many days would it take if there were only 7 people? |
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| 300 49 21 48 54 50 ( 222 ) 45 16 27 10 16 ( 114 ) [[ 336 ]] | ||
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