|
409 WorkRate1 |
Name : _________________ |
||
|
8 people can do a job in 6 days. How many days would it take if there were only 4 people? |
20 people can do a job in 12 days. How many days would it take if there were only 4 people? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 409 12 18 36 48 25 ( 139 ) 60 10 36 24 12 ( 142 ) [[ 281 ]] | ||
|
|
||