511  WorkRate1
1

Name : _________________

 

refresh

12 people can do a job in 12 days. How many days would it take if there were only 4 people?



32 people can do a job in 8 days. How many days would it take if there were only 8 people?



49 people can do a job in 12 days. How many days would it take if there were only 7 people?



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



40 people can do a job in 9 days. How many days would it take if there were only 8 people?



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



6 people can do a job in 7 days. How many days would it take if there were only 2 people?



40 people can do a job in 9 days. How many days would it take if there were only 8 people?



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



24 people can do a job in 5 days. How many days would it take if there were only 8 people?



+(         )

 

(         )+

++[[          ]]++

511    36 32 84 24 45 ( 221 )   63 21 45 36 15 ( 180 )   [[ 401 ]]