Math, asked by IYINZ853, 9 months ago

A motorcyclist drives from place A to B with a uniform speed of 30km per hour and return s from place B to A with a uniform speed of 20 km per hour.what is his average speed.

Answers

Answered by poojasreechekuri
1

Answer:

25 km/hr

Step-by-step explanation:

avg = (30+20)/2

Answered by manjubala39
3

Lets suppose the time taken in moving from A to B is T1.

Speed = 30km/hr

So T1= AB/30

Lets suppose the time taken in moving from B to A is T2

Speed = 20 km/hr

T2 = AB/20

Total distance = 2AB

Total Time = AB/20 + AB/30

= AB [1/20 +1/30]

= AB [50/600]

=ABx 5/60

Average Speed = Total Distance / Total Time

= 2ABx60/ABx5 = 120/5 = 24 km/hr

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