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      Question

      B is 2 years older than A and A is 5 years older than C.

      If the sum of the age of A and C is 25 years, then find the sum of the ages of all three. 
      A 40 years Correct Answer Incorrect Answer
      B 42 years Correct Answer Incorrect Answer
      C 37 years Correct Answer Incorrect Answer
      D 45 years Correct Answer Incorrect Answer

      Solution

      Let C’s present age be x years.  So, A’s present age = (x + 5) years  And B’s present age = (x + 5 + 2) = (x + 7) years  According to question, => x + 5 + x = 25  => 2x = 20 => x = 10 Required total sum = x + (x + 5) + (x + 7) = 3x + 12 = 42 years  

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