A motorist travels to a place 150 m away at an average speed for 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per

A motorist travels to a place 150 m away at an average speed for 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour ?

A motorist travels to a place 150 m away at an average speed for 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour ? ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

37.5

0 1

Best Answer Explained in Below-:

Hints: বেগ = দূরত্ব / সময় Average বেগ বার করতে Total travelling time বপর করতে হয়। প্রথমে সময় লাগে = 150/50 = 3 hr পরে সময় লাগে = 150/30 = 5 hr average speed = 150 + 150/3 + 5 = 37.5 km/h

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