642 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 5 days, and Bob does it in 7 days, how long do they take together? (Nearest to the 10th...) |
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642 3.2 1.9 3.3 1.6 4.4 ( 14.4 ) 2.9 5 1.4 3.7 1.5 ( 14.5 ) [[ 28.9 ]] | ||
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