Question

A man pedals cycle from his house to his office at a speed of 10 km/h and back from the office to his house at a speed of 15 km/h. His average speed (in km/h) is:

A 12.5 Correct Answer Incorrect Answer
B 12.8 Correct Answer Incorrect Answer
C 12 Correct Answer Incorrect Answer
D 13 Correct Answer Incorrect Answer

Solution

The correct answer is C

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