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121 WorkRate1 |
Name : _________________ |
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18 people can do a job in 7 days. How many days would it take if there were only 9 people? |
30 people can do a job in 8 days. How many days would it take if there were only 5 people? |
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| 121 14 20 35 56 54 ( 179 ) 48 21 32 33 18 ( 152 ) [[ 331 ]] | ||
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