|
162 Age |
Name : _________________ |
||
|
Mary is 18 years older than Jerry. 8 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 12 years older than Jerry. 7 years ago, Mary was 7 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 162 14 14 10 8 8 ( 54 ) 9 9 9 7 11 ( 45 ) [[ 99 ]] | ||
|
|
||