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497 WorkRate1 |
Name : _________________ |
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16 people can do a job in 10 days. How many days would it take if there were only 4 people? |
18 people can do a job in 5 days. How many days would it take if there were only 9 people? |
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| 497 40 55 21 36 70 ( 222 ) 10 40 42 55 50 ( 197 ) [[ 419 ]] | ||
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