Question

Speed of car was 90 km during the first hour and 60 km during the second hour then find the average speed of the car

Answer 1

As you know that

Average Speed = Distance Covered/ Time Taken

According to the question

Speed = (60+90) Km / 2Hours

= 150 Km / 2 Hours

Speed = 75 Kmph

Hope it helps

Answer 2

Concept Introduction: Speed is distance per time

Given:

We have been Given: Speed in the First Hour is

$90 \: km {h}^{ - 1}$

Speed in the Second hour is

$60km {h}^{ - 1}$

To Find:

We have to Find: Average speed of the Car.

Solution:

According to the problem,

Average Speed is given by

$total \: speed \div total \: number \: of \: speeds$

therefore,

$avg. \: speed = (90 + 60) \div 2 = 150 \div 2 = 75km {h}^{ - 1}$

Final Answer: The Average speed of the Car is

$75km {h}^{ - 1}$

#SPJ2