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455 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? |
12 people can do a job in 12 days. How many days would it take if there were only 4 people? |
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| 455 30 27 54 44 25 ( 180 ) 36 14 30 10 18 ( 108 ) [[ 288 ]] | ||
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