Q: Car A takes 1 hour more than car B, which travels at a speed of 60 km per hour, to cover some fixed distance. If car A had doubled its speed, it could cover the distance in 1 hour less time than car B travelling at 60 km per hour. What is the original speed of car A in km per hour ?
(a)30
(b)40
(c)45
(d)50
Correct Answer: (c)
The correct answer is (a) '30'. This question from the Quantitative Aptitude & Data Interpretation domain tests knowledge of Numerical Ability.