Question
Elijah drove at an average speed of 106 km/h for 4 hours. He then reduced his average speed by 14 km/h and continued for another 3 hours before he reached his destination. Find his average speed for the whole journey.
3 m

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Elijah drove at an average speed of 106 km/h for 4 hours. He then reduced his average speed by 14 km/h and continued for another 3 hours before he reached his destination. Find his average speed for the whole journey.