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323 WorkRate1 |
Name : _________________ |
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15 people can do a job in 9 days. How many days would it take if there were only 3 people? |
12 people can do a job in 9 days. How many days would it take if there were only 4 people? |
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| 323 45 49 77 54 10 ( 235 ) 27 25 70 63 36 ( 221 ) [[ 456 ]] | ||
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