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170 WorkRate1 |
Name : _________________ |
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18 people can do a job in 10 days. How many days would it take if there were only 9 people? |
36 people can do a job in 12 days. How many days would it take if there were only 6 people? |
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| 170 20 36 63 20 30 ( 169 ) 72 33 50 18 33 ( 206 ) [[ 375 ]] | ||
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