|
351 Age |
Name : _________________ |
||
|
Mary is 10 years older than Jerry. 8 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
Mary is 9 years older than Jerry. 7 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 351 10 5 12 10 5 ( 42 ) 10 10 11 9 8 ( 48 ) [[ 90 ]] | ||
|
|
||