|
580 Age |
Name : _________________ |
||
|
Mary is 16 years older than Jerry. 7 years ago, Mary was 5 times as old as Jerry then. How old is Mary? |
Mary is 12 years older than Jerry. 4 years ago, Mary was 7 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 580 11 6 8 12 11 ( 48 ) 6 10 8 6 7 ( 37 ) [[ 85 ]] | ||
|
|
||