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Offline Centres

The percentage of the world population of countries is given in the following table. Find the value of ‘a’. If a pie diagram is to be drawn, what would be the measure of the central angle for the USA?

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answer is D.

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Detailed Solution

Here, we use,

Percentage of population = 100
Now, we need to find ‘a’,

Thus, Percentage of population in Russia and the USA is 20.
Here, we using

Central angle of India:

Central angle of China:

Central angle of USA:

We have the same component in Russia. That is, 20.
Central angel of others:

Here, drawing a pie chart we get:
Question Image

Therefore, the Central angle of the USA:

Hence, Option (4) is the correct answer.

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