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415 WorkRate |
Name : _________________ |
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If Ann does a job in 4 days, and Bob does it in 9 days, how long do they take together? (Nearest to the 10th...) |
If Ann does a job in 7 days, and Bob does it in 10 days, how long do they take together? (Nearest to the 10th...) |
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| 415 2.8 3.3 1.3 3.2 2.2 ( 12.8 ) 4.1 2.9 1.9 2.1 5 ( 16 ) [[ 28.8 ]] | ||
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