πŸ“Š Math
Q. The sum of the present ages of a father and his son is 60 years. five years ago, father's age was four times the age of the son. so now the son's age will be:
  • (A) 5
  • (B) 10
  • (C) 15
  • (D) 20
βœ… Correct Answer: (C) 15

Explanation: Let the present ages of son and father be x and (60 -x) years respectively.
Then, (60 - x) - 5= 4(x - 5)
55 - x = 4x - 20
5x = 75 => x = 15

Explanation by: Deepak Sahoo
Let the present ages of son and father be x and (60 -x) years respectively.
Then, (60 - x) - 5= 4(x - 5)
55 - x = 4x - 20
5x = 75 => x = 15

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