272  WorkRate
Together, how long? 1

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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 8 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 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 6 days, how long do they take together? (Nearest to the 10th...)



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



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



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272    1.6 1.2 3.4 3.2 3 ( 12.4 )   3.4 1.7 2.3 4.2 2 ( 13.6 )   [[ 26 ]]