The pie-chart shows the sales of an item on different days of a week. Study the given pie-chart and answer the question that follows.

The angle made at the centre by the sales on Wednesday is (in degrees):

Correct option is D

Given:

The total sales for the week (sum of all sales values from the pie chart):

180 + 140 + 120 + 90 + 80 + 60 + 50 = 720

Concept Used:

The formula for calculating the central angle in a pie chart is:

​$$\text{Central Angle} = \left(\frac{\text{Sales for the day}}{\text{Total Sales}}\right) \times 360\degree$$​

Solution: 

From the formula;

= $$\left(\frac{80 \times 360}{720}\right)$$​

= $$40 \degree$$

Option (D) is right.