|
154 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 4 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
Mary is 10 years older than Jerry. 6 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 154 10 10 12 11 9 ( 52 ) 11 11 9 13 10 ( 54 ) [[ 106 ]] | ||
|
|
||