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A man walks from point X to Y at a speed of 20 km/h, but comes back from point Y to X at a speed of 25 km/h. Find his average speed. |
$22\frac{2}{9}$ km/h $23\frac{2}{9}$ km/h $25\frac{2}{9}$ km/h $24\frac{2}{9}$ km/h |
$22\frac{2}{9}$ km/h |
Average Speed = \(\frac{2 × 25 × 20 }{25 + 20}\) = \(\frac{1000 }{45}\) = 22\(\frac{2}{9}\) km/h |
