869  WorkRate1
1

Name : _________________

 

refresh

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



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



42 people can do a job in 8 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 7 days. How many days would it take if there were only 6 people?



40 people can do a job in 12 days. How many days would it take if there were only 8 people?



18 people can do a job in 10 days. How many days would it take if there were only 9 people?



9 people can do a job in 5 days. How many days would it take if there were only 3 people?



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



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



+(         )

 

(         )+

++[[          ]]++

869    18 63 56 63 42 ( 242 )   60 20 15 45 24 ( 164 )   [[ 406 ]]