945  WorkRate
Together, how long? 1

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If Ann does a job in 9 days, and Bob does it in 4 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...)



If Ann does a job in 5 days, and Bob does it in 3 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...)



If Ann does a job in 6 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 9 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 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 8 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 4 days, how long do they take together? (Nearest to the 10th...)



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945    2.8 4.2 1.9 1.2 3.2 ( 13.3 )   1.6 2.4 2.7 1.6 1.3 ( 9.6 )   [[ 22.9 ]]