617  WorkRate1
1

Name : _________________

 

refresh

20 people can do a job in 12 days. How many days would it take if there were only 5 people?



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



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



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



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



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



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



21 people can do a job in 11 days. How many days would it take if there were only 7 people?



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



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



+(         )

 

(         )+

++[[          ]]++

617    48 12 25 27 77 ( 189 )   48 24 33 20 32 ( 157 )   [[ 346 ]]