|
799 Age |
Name : _________________ |
||
|
Mary is 10 years older than Jerry. 4 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
Mary is 6 years older than Jerry. 6 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 799 9 10 8 8 8 ( 43 ) 9 9 13 7 9 ( 47 ) [[ 90 ]] | ||
|
|
||