Question

A is 25 years younger than her mother 15 years hence will be half as old as her mother will be

Answer 1

Hey, sup!

As per the question,

Let the age of A be x years.
So A's mother's ages will be x+25years.

15 years hence,
A's age=x+15years.
A's mother's age= x+25+15=x+40.

2(x+15)=x+40.
=>2x+30=x+40.
=>2x-x=40-30.
=>x= 10 years.

So A's age is 10 years.
And A's mother's age is 10+25=35years.

Hope it helps.