A man travels at a speed of 75 kmph for 75% of his journey and at a speed of 90 kmph for the rest of his journey. Find his average speed throughout the journey.

A man travels at a speed of 75 kmph for 75% of his journey and at a speed of 90 kmph for the rest of his journey. Find his average speed throughout the journey. Correct Answer 78.75 kmph

The average speed of the man = (75 * 75 + 25 * 90) / 100 = (5625 + 2250) / 100 = 7875 / 100 = 78.75 kmph
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