931  WorkRate
Together, how long? 1

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If Ann does a job in 9 days, and Bob does it in 2 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 8 days, and Bob does it in 10 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 4 days, and Bob does it in 8 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 9 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 2 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 2 days, and Bob does it in 7 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 2 days, and Bob does it in 3 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 7 days, and Bob does it in 9 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 5 days, and Bob does it in 10 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 3 days, and Bob does it in 2 days, how long do they take together? (Nearest to the 10th...)



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931    1.6 4.4 2.7 3.9 1.4 ( 14 )   1.6 1.2 3.9 3.3 1.2 ( 11.2 )   [[ 25.2 ]]