Question : The pie chart given below shows the number of cars sold by 8 different companies. The total number of cars sold by all these 8 companies is 2,000. The number of cars sold by a particular company is shown as a percent of the total number of cars sold by all these 8 companies.
The average number of cars sold by C1 and C2 is how much percent less than the average number of cars sold by C7 and C8?
Option 1: 66.66%
Option 2: 33.33%
Option 3: 16.66%
Option 4: 25%
Correct Answer: 25%
Solution :
The average number of cars sold by C1 and C2 = $\frac{8+22}{2}=15$%.
The average number of cars sold by C7 and C8 = $\frac{10+30}{2}=20$%.
The average number of cars sold by C1 and C2 is less than the average number of cars sold by C7 and C8 = 20% – 15% = 5%.
The required percentage = $\frac{5}{20}\times 100=25$%.
Hence, the correct answer is 25%.
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