Question

on a hundred kilometers track a car covers first 70 km at speed of 20km/h and next 30 km at the speed of 25km/h.find the average speed of the car.

note : please give the answer with steps

Answer 1

Formula of avg speed
=2vm/v+m
=(2)(20)(25)/20+25
=1000/45
22.22km/h

Answer 2

Hi

here is your answer:

⚛formula :2vm/v+m

(2) (20) (25) / 20+25

1000/45

=22.22 km /h

⚛⚛The average of speed of the car is : 22.22 km /h

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