|
642 WorkRate1 |
Name : _________________ |
||
|
30 people can do a job in 7 days. How many days would it take if there were only 6 people? |
18 people can do a job in 6 days. How many days would it take if there were only 6 people? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 642 35 72 28 36 14 ( 185 ) 18 30 63 25 72 ( 208 ) [[ 393 ]] | ||
|
|
||