Question
David drove at an average speed of 88 km/h for 4 hours. He then reduced his average speed by 14 km/h and continued for another 4 hours before he reached his destination. Find his average speed for the whole journey.
3 m

Click button first when a symbol is required. X

David drove at an average speed of 88 km/h for 4 hours. He then reduced his average speed by 14 km/h and continued for another 4 hours before he reached his destination. Find his average speed for the whole journey.