|
499 Age |
Name : _________________ |
||
|
Mary is 6 years older than Jerry. 6 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
Mary is 15 years older than Jerry. 4 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 499 9 7 9 9 12 ( 46 ) 7 11 13 10 13 ( 54 ) [[ 100 ]] | ||
|
|
||