|
989 Age |
Name : _________________ |
||
|
Mary is 12 years older than Jerry. 4 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 20 years older than Jerry. 4 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 989 8 5 14 9 8 ( 44 ) 8 10 8 7 10 ( 43 ) [[ 87 ]] | ||
|
|
||