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680 WorkRate |
Name : _________________ |
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If Ann does a job in 7 days, and Bob does it in 5 days, how long do they take together? (Nearest to the 10th...) |
If Ann does a job in 10 days, and Bob does it in 6 days, how long do they take together? (Nearest to the 10th...) |
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| 680 2.9 3.4 4.5 1.7 4 ( 16.5 ) 3.8 4.7 3.1 2.1 3.4 ( 17.1 ) [[ 33.6 ]] | ||
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