428  WorkRate1
1

Name : _________________

 

refresh

8 people can do a job in 9 days. How many days would it take if there were only 4 people?



12 people can do a job in 9 days. How many days would it take if there were only 4 people?



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



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



36 people can do a job in 10 days. How many days would it take if there were only 6 people?



48 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 10 days. How many days would it take if there were only 9 people?



12 people can do a job in 9 days. How many days would it take if there were only 3 people?



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



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



+(         )

 

(         )+

++[[          ]]++

428    18 27 54 63 60 ( 222 )   54 30 36 14 30 ( 164 )   [[ 386 ]]