155  WorkRate1
1

Name : _________________

 

refresh

18 people can do a job in 12 days. How many days would it take if there were only 9 people?



15 people can do a job in 9 days. How many days would it take if there were only 5 people?



21 people can do a job in 12 days. How many days would it take if there were only 3 people?



49 people can do a job in 6 days. How many days would it take if there were only 7 people?



20 people can do a job in 7 days. How many days would it take if there were only 4 people?



12 people can do a job in 10 days. How many days would it take if there were only 2 people?



21 people can do a job in 7 days. How many days would it take if there were only 7 people?



36 people can do a job in 6 days. How many days would it take if there were only 9 people?



12 people can do a job in 6 days. How many days would it take if there were only 6 people?



15 people can do a job in 5 days. How many days would it take if there were only 5 people?



+(         )

 

(         )+

++[[          ]]++

155    24 27 84 42 35 ( 212 )   60 21 24 12 15 ( 132 )   [[ 344 ]]