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767 WorkRate1 |
Name : _________________ |
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28 people can do a job in 7 days. How many days would it take if there were only 7 people? |
21 people can do a job in 9 days. How many days would it take if there were only 3 people? |
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++[[ ]]++ |
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| 767 28 10 25 20 48 ( 131 ) 63 20 48 48 10 ( 189 ) [[ 320 ]] | ||
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