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The given histogram shows the frequency distribution of the speed of cars passing through a particular spot on a highway. Read the graph and answer the following question. What percentage of cars were running with the speed of 90 km/hr and above?

The given histogram shows the frequency distribution of the speed of cars passing through a particular spot on a highway. Read the graph and answer the following question. What percentage of cars were running with the speed of 90 km/hr and above? Correct Answer 11.25%

Given: 

Number of cars having speed between (40-50)kmph = 50 

Number of cars having speed between (50-60)kmph = 70 

Number of cars having speed between (60-70)kmph = 85 

Number of cars having speed between (70-80)kmph = 90 

Number of cars having speed between (80-90)kmph = 60 

Number of cars having speed between (90-100)kmph = 45 

Calculations:

Total cars on highway = 50 + 70 + 85 + 90 + 60 + 45 = 400

Cars running with the speed of 90 km/hr and above = 45

Percentage of cars running with the speed of 90km/hr and above = (45/400) × 100 = 11.25%

∴ 11.25% cars were running with the speed of 90 km/hr and above.

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