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Railways PYQCBT 1 2016

RRB NTPC · Question 41

The difference between the ages of two sisters is 2 years when father’s age is 52. Father is elder by 2 years to mother. Elder sister’s age is half of mother’s age. Find the age of younger sister?

  1. 27
  2. 21
  3. 25
  4. 23
Show answer & explanation

Answer: (D) 23

Explanation

Father = 52, so mother = 50. Elder sister = 50/2 = 25, and the younger sister = 25 − 2 = 23.