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142 WorkRate1 |
Name : _________________ |
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63 people can do a job in 11 days. How many days would it take if there were only 9 people? |
25 people can do a job in 11 days. How many days would it take if there were only 5 people? |
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| 142 77 15 48 60 55 ( 255 ) 55 20 30 35 18 ( 158 ) [[ 413 ]] | ||
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