256  WorkRate1
2

Name : _________________

 

refresh

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



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



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



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



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



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



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



15 명의 일꾼들이 어떤일을 끝내는데 10 일이 걸린다. 만일 5 명의 일꾼들이 하면 며칠 걸려 끝내겠는가?



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



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



+(         )

 

(         )+

++[[          ]]++

256    35 20 36 42 36 ( 169 )   60 56 30 77 12 ( 235 )   [[ 404 ]]