|
209 Age |
Name : _________________ |
||
|
Mary is 4 years older than Jerry. 3 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
Mary is 15 years older than Jerry. 8 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 209 5 5 10 10 7 ( 37 ) 13 14 6 7 8 ( 48 ) [[ 85 ]] | ||
|
|
||