102  Age
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Mary is 18 years older than Jerry. 8 years ago, Mary was 4 times as old as Jerry then. How old is Mary?



Mary is 12 years older than Jerry. 5 years ago, Mary was 5 times as old as Jerry then. How old is Mary?



Mary is 12 years older than Jerry. 8 years ago, Mary was 7 times as old as Jerry then. How old is Mary?



Mary is 12 years older than Jerry. 4 years ago, Mary was 5 times as old as Jerry then. How old is Mary?



Mary is 15 years older than Jerry. 5 years ago, Mary was 6 times as old as Jerry then. How old is Mary?



Mary is 6 years older than Jerry. 5 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?



Å«ÇüÀº ÀÛÀºÇüº¸´Ù 12 »ìÀÌ ´õ¸¹°í, 7 ³âÀü¿¡´Â Å«Çü³ªÀ̰¡ ÀÛÀºÇü¿¡ 5 ¹è¿´À»¶§, ÇöÀç Å«ÇüÀÇ ³ªÀÌ´Â ¸î»ìÀΰ¡?



Mary is 18 years older than Jerry. 6 years ago, Mary was 4 times as old as Jerry then. How old is Mary?



Mary is 18 years older than Jerry. 5 years ago, Mary was 4 times as old as Jerry then. How old is Mary?



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