A) 37.5
B) 37
C) 35
D) 40
Correct Answer: A
Solution :
Time taken to move 150 km up the journey \[=\frac{150}{30}=3\,\,hrs.\] Time taken to move 150 km down the journey \[=\frac{150}{30}=5\,\,hrs.\] Average speed = \[\frac{150+150}{3+5}\] = \[\]You need to login to perform this action.
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