A man travelled from place A to place B at an average speed of 75 km/h. He travelled the first 60% of the distance in $$\frac{8}{15}$$ of the time and rest at a constant speed of $$x$$ km/h to reach B. What is the value of $$x$$ ? (Nearest to an integer)

A

67

B

64

C

63

D

65