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257 WorkRate1 |
Name : _________________ |
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6 people can do a job in 9 days. How many days would it take if there were only 2 people? |
12 people can do a job in 8 days. How many days would it take if there were only 2 people? |
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| 257 27 30 35 36 55 ( 183 ) 48 15 77 30 21 ( 191 ) [[ 374 ]] | ||
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