Question : A car travels 80 km in the first hour and 70 km in the second hour. What is the average speed of the car?
Option 1: 150 km/hr
Option 2: 80 km/hr
Option 3: 75 km/hr
Option 4: 100 km/hr
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Correct Answer: 75 km/hr
Solution : Given: A car travels 80 km in the first hour and 70 km in the second hour. Total distance = 80 + 70 = 150 km Total time = 1 + 1 = 2 hours We know that, Average speed = $\frac{\text{Total distance}}{\text{Total time}}$ = $\frac{150}{2}$ = 75 km/hr Hence, the correct answer is 75 km/hr.
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