252  WorkRate
Together, how long? 1

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



If Ann does a job in 6 days, and Bob does it in 2 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 9 days, and Bob does it in 3 days, how long do they take together? (Nearest to the 10th...)



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



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252    1.4 1.5 4.5 2.2 1.3 ( 10.9 )   3.8 3.6 2.2 3.7 1.7 ( 15 )   [[ 25.9 ]]