Question
Oliver celebrates his birthday today. 7 years ago, he was thrice as old as his daughter while his wife was 30 years older than her. If his wife is 58 years old this year, how old was Oliver last year?
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Oliver celebrates his birthday today. 7 years ago, he was thrice as old as his daughter while his wife was 30 years older than her. If his wife is 58 years old this year, how old was Oliver last year?