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Mary is 15 years older than Jerry. 7 years ago, Mary was 6 times as old as Jerry then. How old is Mary? |
Mary is 12 years older than Jerry. 6 years ago, Mary was 5 times as old as Jerry then. How old is Mary? |
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| 978 10 11 9 8 8 ( 46 ) 9 10 8 7 5 ( 39 ) [[ 85 ]] | ||
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