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977 WorkRate1 |
Name : _________________ |
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18 people can do a job in 11 days. How many days would it take if there were only 9 people? |
30 people can do a job in 5 days. How many days would it take if there were only 5 people? |
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| 977 22 40 70 35 30 ( 197 ) 30 36 20 21 30 ( 137 ) [[ 334 ]] | ||
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