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428 WorkRate1 |
Name : _________________ |
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8 people can do a job in 9 days. How many days would it take if there were only 4 people? |
48 people can do a job in 9 days. How many days would it take if there were only 8 people? |
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| 428 18 27 54 63 60 ( 222 ) 54 30 36 14 30 ( 164 ) [[ 386 ]] | ||
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