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A man travels 24 km at 6km/h,another 24 km at 8 km/h and also third 24 km at 12km/h .find the average speed for whole journey. |
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Answer» SPEED = Distance/Time Time = Distance/Speed 24/6 = 4hr 24/8 = 3hr 24/12 = 2hr 72/9 = 8km/hr The AVERAGE speed is 8km/hr |
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