|
455 Age |
Name : _________________ |
||
|
Mary is 15 years older than Jerry. 6 years ago, Mary was 6 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? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 455 9 5 6 9 10 ( 39 ) 9 10 7 7 10 ( 43 ) [[ 82 ]] | ||
|
|
||