Uttar Pradesh Board 10th examination
Question : Study the given bar graph and answer the question that follows. The bar graph shows the distance (in km) between two cities and the speeds (in km/hr) of a person to cover the respective distances. What is the approximate average speed of the person while travelling from city A to city F?
Option 1: 28.55 km/hr
Option 2: 23.60 km/hr
Option 3: 21.78 km/hr
Option 4: 19.47 km/hr
Correct Answer: 21.78 km/hr
Solution : Use the formula, $\text{Average speed}=\frac{\text{Total distance}}{\text{Total Time taken}}$ The time needed to go from city A to city B $=\frac{80}{16}=5$ hours The time needed to go from city B to city C $=\frac{120}{40}=3$ hours The time needed to go from city C to city
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