Ages — present age from ratio and difference: Present ages of Kunal and Ganesh are in the ratio 3:5. Four years later Kunal will be 12 years younger than Ganesh. Find Kunal’s present age.

Introduction / Context:
This problem mixes a present ratio with a future fixed difference. Translate both to equations and solve for the present ages.

Given Data / Assumptions:

• Present Kunal:Ganesh = 3:5.
• After 4 years: Kunal will be 12 years younger than Ganesh.

Concept / Approach:
Let K = 3x and G = 5x. Use the future difference to determine x and then K.

Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

• 17, 19, 22 are not equal to 18, which satisfies the conditions.
• Hence “None of these” is correct.

Common Pitfalls:

• Using K = G + 12 by mistake.
• Forgetting to apply the 4-year shift to both persons.

Final Answer:
None of these (Kunal is 18 years)