Question : The following pie chart gives the central angles of the sectors representing the number of cameras sold by a shop from July to November in a certain year.
What percentage are the sales in July of the total sales from July to November?
Option 1: 25%
Option 2: 50%
Option 3: 12.5%
Option 4: 20%
Correct Answer: 12.5%
Solution :
From the pie chart,
The number of cameras sold in July = 45
The total number of cameras sold from July to November = 45 + 50 + 80 + 90 + 95 = 360
Percentage = $\frac{\text{July sales}}{\text{Total sales}}$ × 100
$= \frac{45}{360}$ × 100
= 12.5%
Hence, the correct answer is 12.5%.
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