If ½ x years ago Kabir was 12, and 1/2x years from now he will be 2x years old, how old will he be 3x years from now?
Solution
Correct Answer: Option D
½ x years ago Kabir was 12 so , his current age = 12+½ x after,1/2x years his age will be =12+½ x +½ x here, 12+½ x +½ x =2x or,12+x=2x or,x=12 so,his current age = 12+1/2 (12) =18 after 3x=3x12=36 year later he will be =18+36 =54 years
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