109  WorkRate1
1

Name : _________________

 

refresh

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



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



21 people can do a job in 6 days. How many days would it take if there were only 3 people?



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



21 people can do a job in 7 days. How many days would it take if there were only 3 people?



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



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



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



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



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



+(         )

 

(         )+

++[[          ]]++

109    18 27 42 36 49 ( 172 )   35 24 35 42 72 ( 208 )   [[ 380 ]]