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813 WorkRate1 |
Name : _________________ |
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49 people can do a job in 10 days. How many days would it take if there were only 7 people? |
10 people can do a job in 10 days. How many days would it take if there were only 5 people? |
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++[[ ]]++ |
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| 813 70 12 33 42 84 ( 241 ) 20 40 54 77 40 ( 231 ) [[ 472 ]] | ||
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