Question

I am F years old and my brother is b years older. What will be the sum of our ages in three years

Answer 1

The sum of your ages is F + (F+B) = 2F+B.

In 3 years, the sum of your ages will be (F+3)+(F+B+3) = 2F+B+6.

The difference of your ages at any time is B.

Explanation:

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