598  WorkRate
Together, how long? 1

Name : _________________

 

refresh

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 7 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 9 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 5 days, and Bob does it in 4 days, how long do they take together? (Nearest to the 10th...)



If Ann does a job in 9 days, and Bob does it in 6 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 4 days, and Bob does it in 10 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 7 days, and Bob does it in 6 days, how long do they take together? (Nearest to the 10th...)



+(         )

 

(         )+

++[[          ]]++

598    3.6 3.2 2.8 2.2 2.2 ( 14 )   3.6 4.7 2.9 2.2 3.2 ( 16.6 )   [[ 30.6 ]]