690  WorkRate1
2

Name : _________________

 

refresh

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



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



12 people can do a job in 6 days. How many days would it take if there were only 4 people?



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



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



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



16 people can do a job in 6 days. How many days would it take if there were only 4 people?



30 명의 일꾼들이 어떤일을 끝내는데 11 일이 걸린다. 만일 5 명의 일꾼들이 하면 며칠 걸려 끝내겠는가?



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



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



+(         )

 

(         )+

++[[          ]]++

690    40 50 18 21 70 ( 199 )   24 24 66 48 30 ( 192 )   [[ 391 ]]