423  WorkRate1
1

Name : _________________

 

refresh

16 people can do a job in 11 days. How many days would it take if there were only 4 people?



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



4 people can do a job in 8 days. How many days would it take if there were only 2 people?



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



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



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



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



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



16 people can do a job in 10 days. How many days would it take if there were only 4 people?



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



+(         )

 

(         )+

++[[          ]]++

423    44 60 16 12 84 ( 216 )   42 36 45 40 48 ( 211 )   [[ 427 ]]