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497 WorkRate |
Name : _________________ |
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If Ann does a job in 5 days, and Bob does it in 8 days, how long do they take together? (Nearest to the 10th...) |
If Ann does a job in 8 days, and Bob does it in 9 days, how long do they take together? (Nearest to the 10th...) |
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| 497 3.1 3.6 1.5 2.9 2.5 ( 13.6 ) 4.2 2.7 2 2 1.6 ( 12.5 ) [[ 26.1 ]] | ||
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