164  Age
2

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Mary is 12 years older than Jerry. 3 years ago, Mary was 3 times as old as Jerry then. How old is Mary?



Mary is 25 years older than Jerry. 4 years ago, Mary was 6 times as old as Jerry then. How old is Mary?



Mary is 12 years older than Jerry. 7 years ago, Mary was 4 times as old as Jerry then. How old is Mary?



Mary is 4 years older than Jerry. 4 years ago, Mary was 3 times as old as Jerry then. How old is Mary?



Mary is 6 years older than Jerry. 7 years ago, Mary was 3 times as old as Jerry then. How old is Mary?



Mary is 4 years older than Jerry. 3 years ago, Mary was 3 times as old as Jerry then. How old is Mary?



Mary is 8 years older than Jerry. 5 years ago, Mary was 5 times as old as Jerry then. How old is Mary?



Å«ÇüÀº ÀÛÀºÇüº¸´Ù 25 »ìÀÌ ´õ¸¹°í, 3 ³âÀü¿¡´Â Å«Çü³ªÀÌ°¡ ÀÛÀºÇü¿¡ 6 ¹è¿´À»¶§, ÇöÀç Å«ÇüÀÇ ³ªÀÌ´Â ¸î»ìÀΰ¡?



Mary is 24 years older than Jerry. 3 years ago, Mary was 5 times as old as Jerry then. How old is Mary?



Mary is 20 years older than Jerry. 6 years ago, Mary was 5 times as old as Jerry then. How old is Mary?



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