|
835 Age |
Name : _________________ |
||
|
Mary is 20 years older than Jerry. 8 years ago, Mary was 5 times as old as Jerry then. How old is Mary? |
Mary is 10 years older than Jerry. 7 years ago, Mary was 3 times as old as Jerry then. How old is Mary? |
|
+( ) |
|
( )+ |
|
++[[ ]]++ |
||
| 835 13 13 9 7 7 ( 49 ) 12 8 8 12 11 ( 51 ) [[ 100 ]] | ||
|
|
||