897  WorkRate
Together, how long? 1

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



If Ann does a job in 7 days, and Bob does it in 5 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 3 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 10 days, how long do they take together? (Nearest to the 10th...)



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897    4.5 1.7 2.5 3.2 2.2 ( 14.1 )   2.3 2.9 3.1 2.2 5 ( 15.5 )   [[ 29.6 ]]