|
485 Age |
Name : _________________ |
||
|
Mary is 15 years older than Jerry. 3 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
Mary is 20 years older than Jerry. 8 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 485 6 7 6 6 10 ( 35 ) 12 7 11 7 7 ( 44 ) [[ 79 ]] | ||
|
|
||