|
416 Age |
Name : _________________ |
||
|
Mary is 9 years older than Jerry. 4 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 10 years older than Jerry. 5 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 416 7 6 7 10 13 ( 43 ) 7 10 8 12 13 ( 50 ) [[ 93 ]] | ||
|
|
||