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989 WorkRate |
Name : _________________ |
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If Ann does a job in 10 days, and Bob does it in 5 days, how long do they take together? (Nearest to the 10th...) |
If Ann does a job in 9 days, and Bob does it in 6 days, how long do they take together? (Nearest to the 10th...) |
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| 989 3.3 3.5 4.2 2.1 2.8 ( 15.9 ) 3.6 4.4 4.7 1.7 1.5 ( 15.9 ) [[ 31.8 ]] | ||
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