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510 WorkRate1 |
Name : _________________ |
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16 people can do a job in 8 days. How many days would it take if there were only 4 people? |
18 people can do a job in 9 days. How many days would it take if there were only 9 people? |
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| 510 32 35 21 28 22 ( 138 ) 18 40 48 55 30 ( 191 ) [[ 329 ]] | ||
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