342  WorkRate
Together, how long? 1

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



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



If Ann does a job in 5 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 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 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 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 7 days, and Bob does it in 2 days, how long do they take together? (Nearest to the 10th...)



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



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342    1.7 3.2 4.4 1.4 2.1 ( 12.8 )   2.9 3.9 1.6 1.6 2.5 ( 12.5 )   [[ 25.3 ]]