Question 65

The following pie chart gives the central angles of the sectors representing the number of cameras sold from 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?

Solution

percentage = $$\frac{45^{\circ\ }}{\left(45+50+80+90+95\right)^{\circ\ }}\times100$$

= $$\frac{45^{\circ\ }}{360^{\circ\ }}\times100$$

= $$\frac{1}{8}\times100$$

= 12.5%

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