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170 WorkRate |
Name : _________________ |
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If Ann does a job in 10 days, and Bob does it in 7 days, how long do they take together? (Nearest to the 10th...) |
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...) |
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| 170 4.1 1.7 2.2 2 3.9 ( 13.9 ) 2.8 2 2.2 3.6 3.9 ( 14.5 ) [[ 28.4 ]] | ||
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