|
525 Age |
Name : _________________ |
||
|
Mary is 15 years older than Jerry. 4 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
Mary is 18 years older than Jerry. 5 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 525 7 7 9 7 13 ( 43 ) 11 8 8 12 9 ( 48 ) [[ 91 ]] | ||
|
|
||