Question

3. A covers 1/3rd of his journey at the speed of 10 km/h and
half of the rest at the speed of 20 km/h and rest at the speed
of 30 km/h. What is the average speed of A?
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Answer 1

Answer:

let's divide the distance into three

parts

you are given that one third is covered at a speed of 10 kilometre per hour and the rest half is covered at a speed of 20 kilometre per hour which means that half of the two third remaining it covered at a speed of 20 kilometre per hour and the rest is at 30 kilometre per hour.

the formula for average speed is given as total speed divided by Total distance covered. so if we use the formula we get 10 + 20 + 30/( 1/3 +1/3+1/3) equals 60/1 to the average speed is 60 kilometre per hour I hope I am correct and is I am correct then please mark me brainliest and follow me please