|
714 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 5 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 9 years older than Jerry. 7 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 714 9 9 10 8 12 ( 48 ) 10 10 13 10 9 ( 52 ) [[ 100 ]] | ||
|
|
||