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Directions (51-55): There are five shops P, Q, R, S and T, and they sell two different items, A and B. The following pie chart shows the total number of items sold by different shops in a particular month. Total number of items sold = 500. What is the central angle corresponding to the total number of items sold by shop S?

1. 87.8°
2. 71.2°
3. 79.2°
4. 77.8°

Correct answer: 79.2°

Solution

In a pie chart, the central angle is proportional to the quantity represented. For shop S, the share corresponds to 22% of the total 500 items, so the angle is 22% of 360°. That gives 79.2°.

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