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423 WorkRate1 |
Name : _________________ |
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20 people can do a job in 6 days. How many days would it take if there were only 4 people? |
24 people can do a job in 7 days. How many days would it take if there were only 8 people? |
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| 423 30 60 20 30 27 ( 167 ) 21 66 70 66 30 ( 253 ) [[ 420 ]] | ||
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