|
574 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 3 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 24 years older than Jerry. 8 years ago, Mary was 7 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 574 7 7 9 6 7 ( 36 ) 12 13 13 6 9 ( 53 ) [[ 89 ]] | ||
|
|
||