|
641 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 7 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 16 years older than Jerry. 8 years ago, Mary was 5 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 641 11 11 11 10 5 ( 48 ) 12 10 13 5 12 ( 52 ) [[ 100 ]] | ||
|
|
||