399  WorkRate1
1

Name : _________________

 

refresh

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



54 people can do a job in 11 days. How many days would it take if there were only 9 people?



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



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



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



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



35 people can do a job in 5 days. How many days would it take if there were only 7 people?



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



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



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



+(         )

 

(         )+

++[[          ]]++

399    14 66 20 63 55 ( 218 )   21 25 36 60 30 ( 172 )   [[ 390 ]]