|
629 Age |
Name : _________________ |
||
|
Mary is 24 years older than Jerry. 4 years ago, Mary was 7 times as old as Jerry then. How old is Mary? |
Mary is 12 years older than Jerry. 8 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 629 8 13 10 7 12 ( 50 ) 12 7 8 12 11 ( 50 ) [[ 100 ]] | ||
|
|
||