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978 WorkRate1 |
Name : _________________ |
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36 people can do a job in 10 days. How many days would it take if there were only 9 people? |
18 people can do a job in 8 days. How many days would it take if there were only 9 people? |
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| 978 40 30 33 36 77 ( 216 ) 16 36 72 35 50 ( 209 ) [[ 425 ]] | ||
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