111  WorkRate
Together, how long? 1

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If Ann does a job in 10 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 4 days, and Bob does it in 4 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 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 4 days, and Bob does it in 2 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 4 days, and Bob does it in 5 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 4 days, and Bob does it in 5 days, how long do they take together? (Nearest to the 10th...)



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



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111    4.7 1.6 2 2.1 4.5 ( 14.9 )   1.3 2.2 2.2 2.5 1.7 ( 9.9 )   [[ 24.8 ]]