|
648 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 5 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 8 years older than Jerry. 4 years ago, Mary was 5 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 648 9 6 8 8 8 ( 39 ) 6 11 9 9 7 ( 42 ) [[ 81 ]] | ||
|
|
||