|
234 Age |
Name : _________________ |
||
|
Mary is 4 years older than Jerry. 7 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
Mary is 10 years older than Jerry. 7 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 234 9 8 9 10 11 ( 47 ) 12 13 5 10 10 ( 50 ) [[ 97 ]] | ||
|
|
||