Question : The pie chart given below shows the number of mobile phones sold by six companies in a year. The total number of mobile phones sold by six companies is 300. Number of mobile phones sold by a particular company is shown as a percentage of total number of mobile phones sold by all these six companies.
What is the average number of mobile phones sold by Q and S?
Option 1: 45
Option 2: 60
Option 3: 75
Option 4: 80
Correct Answer: 60
Solution :
Total mobile phones sold by six companies = 300
Total mobile phones sold by Q = $\frac{25}{100}\times300=75$
Total mobile phones sold by R = $\frac{15}{100}\times300=45$
Average = $\frac{\text{Total phones sold by Q and R}}{2}=\frac{75+45}{2}=60$
Hence, the correct answer is 60.
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