Q: A car starts from Bengaluru, goes 50 km in a straight line towards south, immediately turns around and returns to Bengaluru. The time taken for this round trip is 2 hours. The magnitude of the average velocity of the car for this round trip
(a)is 0.
(b)is 50 km/hr.
(c)is 25 km/hr.
(d)cannot be calculated without knowing acceleration.
Correct Answer: (a)
The correct answer is (b) 'is 50 km/hr.'. This question from the Quantitative Aptitude & Data Interpretation domain tests knowledge of Numerical Ability.