If a car covers 70 km in the first hour and 100 km in the second hour. Then what is the average speed of the car for the entire journey?

56 km/h

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85 km/h

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93 km/h

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72 km/h

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Solution

The correct option is B 85 km/h
Step 1: Total distance= 70 km + 100 km => 170 km
Step 2: Total time taken= 1 h + 1 h => 2 h
Step 3: Average Speed = Total Distance / Total Time
=> 170 km / 2 h
=>85 km/h

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If a car covers 70 km in the first hour and 100 km in the second hour. Then what is the average speed of the car for the entire journey?

The correct option is B 85 km/hStep 1: Total distance= 70 km + 100 km => 170 km Step 2: Total time taken= 1 h + 1 h => 2 h Step 3: Average Speed = Total Distance / Total Time => 170 km / 2 h =>85 km/h

The correct option is B 85 km/h
Step 1: Total distance= 70 km + 100 km => 170 km
Step 2: Total time taken= 1 h + 1 h => 2 h
Step 3: Average Speed = Total Distance / Total Time
=> 170 km / 2 h
=>85 km/h