|
802 WorkRate1 |
Name : _________________ |
||
|
21 people can do a job in 8 days. How many days would it take if there were only 7 people? |
21 people can do a job in 11 days. How many days would it take if there were only 3 people? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 802 24 36 10 12 54 ( 136 ) 77 33 50 30 20 ( 210 ) [[ 346 ]] | ||
|
|
||