835  WorkRate
Together, how long? 1

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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 10 days, and Bob does it in 3 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 6 days, and Bob does it in 9 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 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 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 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 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 3 days, how long do they take together? (Nearest to the 10th...)



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835    1.6 2.3 1.6 3.6 1.2 ( 10.3 )   2.1 1.6 2.1 3.9 1.9 ( 11.6 )   [[ 21.9 ]]