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170 WorkRate1 |
Name : _________________ |
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63 people can do a job in 10 days. How many days would it take if there were only 9 people? |
30 people can do a job in 11 days. How many days would it take if there were only 6 people? |
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| 170 70 24 48 66 60 ( 268 ) 55 22 33 12 20 ( 142 ) [[ 410 ]] | ||
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