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629 WorkRate |
Name : _________________ |
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If Ann does a job in 6 days, and Bob does it in 7 days, how long do they take together? (Nearest to the 10th...) |
If Ann does a job in 9 days, and Bob does it in 10 days, how long do they take together? (Nearest to the 10th...) |
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| 629 3.2 4.1 1.9 3.4 3.1 ( 15.7 ) 4.7 3.4 2.2 2.5 2.2 ( 15 ) [[ 30.7 ]] | ||
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