405  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?



42 people can do a job in 11 days. How many days would it take if there were only 6 people?



16 people can do a job in 6 days. How many days would it take if there were only 4 people?



63 people can do a job in 7 days. How many days would it take if there were only 9 people?



42 people can do a job in 8 days. How many days would it take if there were only 7 people?

18 people can do a job in 8 days. How many days would it take if there were only 6 people?



42 people can do a job in 10 days. How many days would it take if there were only 7 people?



18 people can do a job in 7 days. How many days would it take if there were only 9 people?



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



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

+(         )

(         )+

++[[          ]]++