453  WorkRate
Together, how long? 1

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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 8 days, and Bob does it in 4 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 2 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 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 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 8 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 7 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 10 days, and Bob does it in 10 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...)



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453    2.5 2.7 1 2.9 2.4 ( 11.5 )   2.7 2.2 3.2 5 4.4 ( 17.5 )   [[ 29 ]]