152  WorkRate1
1

Name : _________________

 

refresh

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



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



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



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



20 people can do a job in 9 days. How many days would it take if there were only 4 people?



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



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



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



6 people can do a job in 10 days. How many days would it take if there were only 2 people?



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



+(         )

 

(         )+

++[[          ]]++

152    12 20 35 49 45 ( 161 )   48 21 28 30 21 ( 148 )   [[ 309 ]]