Q458
A man travels 210 km with the speed of 60 km/hr and next 198 km with the speed of 66 km/hr. Find the average speed of the whole journey.
A.
68.5 km/hr
B.
64.5 km/hr
C.
63 km/hr
D.
62.8 km/hr
AnswerAnswer: Option D
Solution
Answer: Option D
Solution: