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660 WorkRate1 |
Name : _________________ |
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42 people can do a job in 7 days. How many days would it take if there were only 6 people? |
10 people can do a job in 8 days. How many days would it take if there were only 2 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 660 49 12 40 42 40 ( 183 ) 40 70 24 77 12 ( 223 ) [[ 406 ]] | ||
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