|
239 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 9 years older than Jerry. 6 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 239 9 5 13 8 7 ( 42 ) 9 10 13 6 9 ( 47 ) [[ 89 ]] | ||
|
|
||