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The pie chart shows the number of participants from four countries P, Q, R and S taking part in the tennis tournament. Given that there are 18 participants from country S, find the number of participants from country R.

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answer is D.

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Detailed Solution

Given:

As the pie chart is circular, the sum of all the angles will be equal to 360°. The given angles are 90°, 2x°, 60° and x°

Number of participants from S=18,
Total participant

Hence number of participants of

.
Therefore, the number of participants from country R in the tennis tournament is 42.
Hence, Option (4) is the correct answer.

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