|
139 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 8 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 12 years older than Jerry. 7 years ago, Mary was 7 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 139 12 11 8 14 7 ( 52 ) 9 9 8 8 7 ( 41 ) [[ 93 ]] | ||
|
|
||