471 WorkRate1 |
Name : _________________ |
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16 people can do a job in 5 days. How many days would it take if there were only 4 people? |
20 people can do a job in 8 days. How many days would it take if there were only 4 people? |
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471 20 42 21 49 22 ( 154 ) 40 24 21 45 40 ( 170 ) [[ 324 ]] | ||
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