|
361 Age |
Name : _________________ |
||
|
Mary is 9 years older than Jerry. 7 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 18 years older than Jerry. 6 years ago, Mary was 7 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 361 10 9 11 8 10 ( 48 ) 9 9 5 13 7 ( 43 ) [[ 91 ]] | ||
|
|
||