Multiple choice

A father’s age is one year more than 5 times of his son’s age. After 3 years, the father’s age would be 2 years less than four times the son’s age. Find the present age of the father. एक पिता की उम्र अपने पुत्र की उम्र के 5 गुने से एक वर्ष ज्यादा है। 3 वर्ष बाद, पिता की उम्र पुत्र की उम्र के चार गुने से 2 वर्ष कम है। तो पिता की वर्तमान आयु ज्ञात करें ?

  1. 30 years

  2. 40 years

  3. 31 years

  4. 29 years

  5. 0
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C Correct answer
Explanation

Let son's age be x. Father's age is 5x + 1. After 3 years, father is 5x + 4 and son is x + 3. The equation is 5x + 4 = 4(x + 3) - 2. Solving gives 5x + 4 = 4x + 12 - 2, so x = 6. Father's age is 5(6) + 1 = 31.

AI explanation

Let the son's present age be x, making the father's age 5x + 1. After 3 years, the equation is 5x + 1 + 3 = 4(x + 3) - 2. This simplifies to 5x + 4 = 4x + 10, giving x = 6. The father's present age is 5(6) + 1 = 31 years.

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