474  WorkRate
Together, how long? 1

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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 10 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 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 3 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 3 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 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 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 3 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 6 days, and Bob does it in 5 days, how long do they take together? (Nearest to the 10th...)



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474    2.7 3.8 3.6 1.2 2.5 ( 13.8 )   1.9 2.2 4.1 2.1 2.7 ( 13 )   [[ 26.8 ]]