Masood's age 18 years from now will be three times his age 4 years ago. What is Masood's current age?

Explanation

Let Masood's current age be 'm' years. According to the problem, m + 18 = 3(m - 4). Simplifying, m + 18 = 3m - 12, which leads to 2m = 30, so m = 15 years. Since 15 years is not listed among the options, the correct choice is 'None of the above'.