521  WorkRate1
1

Name : _________________

 

refresh

10 people can do a job in 8 days. How many days would it take if there were only 5 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 11 days. How many days would it take if there were only 6 people?



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



12 people can do a job in 8 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?



10 people can do a job in 11 days. How many days would it take if there were only 5 people?



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



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



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



+(         )

 

(         )+

++[[          ]]++

521    16 48 22 24 32 ( 142 )   42 22 25 32 42 ( 163 )   [[ 305 ]]