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631 WorkRate1 |
Name : _________________ |
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12 people can do a job in 10 days. How many days would it take if there were only 6 people? |
12 people can do a job in 11 days. How many days would it take if there were only 2 people? |
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| 631 20 30 54 77 30 ( 211 ) 66 24 36 14 30 ( 170 ) [[ 381 ]] | ||
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