566  WorkRate
Together, how long? 1

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If Ann does a job in 5 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 8 days, and Bob does it in 7 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 4 days, and Bob does it in 9 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 9 days, and Bob does it in 10 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 4 days, and Bob does it in 6 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 4 days, and Bob does it in 8 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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566    3.2 1.6 2 3.7 2.8 ( 13.3 )   4.7 3.4 2.4 2.7 1.7 ( 14.9 )   [[ 28.2 ]]