Question

a person travels from P to Q at a speed of 40 km/h and returns by increasing his speed by 50%

Answer 1

Answer:

Avg speed of the journey = 48km/hr.

Step-by-step explanation:

Dear,

I doesn't get what you want to know about this.

But I guess you want to calculate avg. Speed of the journey.

So let's start the solution.

Simple formula for solving this is

{2XY / (X+Y)}

Speed from P to Q = 40km/hr

Return at 50% more speed = 60km/hr

So avg speed is

{ 2(40)(60)/(40+60) }

(4800/100)

Avg speed = 48km/hr.

Hope it's help you.

Thank-you.