|
810 WorkRate1 |
Name : _________________ |
||
|
21 people can do a job in 7 days. How many days would it take if there were only 7 people? |
6 people can do a job in 7 days. How many days would it take if there were only 3 people? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 810 21 25 10 18 70 ( 144 ) 14 32 35 40 20 ( 141 ) [[ 285 ]] | ||
|
|
||