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363 WorkRate1 |
Name : _________________ |
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21 people can do a job in 7 days. How many days would it take if there were only 3 people? |
28 people can do a job in 9 days. How many days would it take if there were only 7 people? |
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| 363 49 16 55 48 24 ( 192 ) 36 84 33 63 22 ( 238 ) [[ 430 ]] | ||
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