246  WorkRate1
1

Name : _________________

 

refresh

4 people can do a job in 12 days. How many days would it take if there were only 2 people?



6 people can do a job in 5 days. How many days would it take if there were only 2 people?



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



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



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



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



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



21 people can do a job in 11 days. How many days would it take if there were only 3 people?



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



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



+(         )

 

(         )+

++[[          ]]++

246    24 15 28 70 12 ( 149 )   24 72 77 15 24 ( 212 )   [[ 361 ]]