|
352 WorkRate1 |
Name : _________________ |
||
|
15 people can do a job in 12 days. How many days would it take if there were only 3 people? |
21 people can do a job in 7 days. How many days would it take if there were only 7 people? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 352 60 72 32 40 24 ( 228 ) 21 36 56 30 54 ( 197 ) [[ 425 ]] | ||
|
|
||