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 D $=\frac{90}{20}=4.5$ hours The time needed to go from city D to city E $=\frac{60}{30}=2$ hours The time needed to go from city E to city F $=\frac{42}{12}=3.5$ hours The total distance from City A to City F = 80 + 120 + 90 + 60 + 42 = 392 km The total time to cover city A-F = 5 + 3 + 4.5 + 2 + 3.5 = 18 hours The approximate average speed of the person while travelling from city A to city F $=\frac{392}{18}=21.78$ km/hr Hence, the correct answer is 21.78 km/hr.
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
And never miss an important update
