I think there is a mistake in the question

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I think there is a mistake in the question

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the present age of A be x years

and B be y years

As per question

x-y=25

=>x=25+y-------------------eq^n(1)

also,

15+x=2(15+y)

=>15+(25+y)=2(15+y)

=>15+25+y=30+2y

=>40+y=30+2y

=>10=y

=>x=35