587  WorkRate
Together, how long? 1

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If Ann does a job in 6 days, and Bob does it in 2 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 7 days, and Bob does it in 3 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 8 days, and Bob does it in 5 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 6 days, and Bob does it in 4 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 9 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 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 6 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...)



If Ann does a job in 7 days, and Bob does it in 4 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 5 days, and Bob does it in 6 days, how long do they take together? (Nearest to the 10th...)



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587    1.5 2.1 3.1 2.4 4.7 ( 13.8 )   2.1 2.4 3.6 2.5 2.7 ( 13.3 )   [[ 27.1 ]]