Mathematics
Medium
Question
A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?
A
70.24 km/hr
B
74. 24 km/hr
C
71.11 km/hr
✓ Official correct answer
D
72.21 km/hr
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A
70.24 km/hr
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B
74. 24 km/hr
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C
71.11 km/hr
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D
72.21 km/hr
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