Question

Adom's on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is?

• A. 71.11km/hr
• B. 68km/hr
• C. 73.4km/hr
• D. 65km/hr

Answer 1

Answer:

A. 71.11km/hr

Read Explanation:

X=64 y=80 Average speed 2xy/(x+y)= (2x61x80)/ (64+80) = (2 × 64 × 80)/144 =71.11 km/hr

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