Q: Two years ago, the age of A was three times the age of B. If B is currently 9 years old, then after how many years, the age of A will be double of the age of B?
(a)2 years
(b)3 years
(c)4 years
(d)5 years
Correct Answer: (d)
The correct answer is (c) '4 years'. This question from the Quantitative Aptitude & Data Interpretation domain tests knowledge of Numerical Ability.