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393 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 7 days. How many days would it take if there were only 4 people? |
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| 393 45 54 44 20 24 ( 187 ) 21 42 35 54 48 ( 200 ) [[ 387 ]] | ||
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