Time and Distance Q.12

12A man completes a journey in 10 hours. The first-half of the journey is covered at the speed of 21 km per hour and second-half at 24 km per hour. The total distance covered during the journey is

Option : B
Explanation : Average speed = (2 × 21 × 24)/(21 + 24) = 22.4 kmph
Distance = Time × Speed = 22.4 × 10 = 224

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