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Mary is 18 years older than Jerry. 4 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
Mary is 6 years older than Jerry. 8 years ago, Mary was 4 times as old as Jerry then. How old is Mary? |
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| 911 10 10 7 11 11 ( 49 ) 10 6 6 9 13 ( 44 ) [[ 93 ]] | ||
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