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399 WorkRate1 |
Name : _________________ |
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21 people can do a job in 5 days. How many days would it take if there were only 3 people? |
49 people can do a job in 12 days. How many days would it take if there were only 7 people? |
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| 399 35 30 16 10 18 ( 109 ) 84 63 18 50 40 ( 255 ) [[ 364 ]] | ||
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