Multiple choice

The sum of the present ages of both father and son is 86 years. Five years ago, the father was 2 years less than twice as old as his son at that time. Find the present age of the son.

  1. 31 years

  2. 30 years

  3. 32 years

  4. 34 years

  5. 36 years
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A Correct answer
Explanation

Let the present age of father be x years and that of the son 86 - x years.

Five years ago, father's age = x - 5 years and son's age = (86 - x - 5) = 81 - x years

Now, according to question,

x - 5 = 2(81 - x) - 2

x = 55

So, present age of father = 55 years 

Therefore, present age of son = 86 - 55 = 31 years

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