UPSC NDA 2 2021 Mathematics Solved Paper
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Question : 19 of 120
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Suppose 20 distinct points are placed randomly on a circle. Which of the following statements is/are correct?
1. The number of straight lines that can be drawn by joining any two of these points is 380 .
2. The number of triangles that can be drawn by joining any three of these points is 1140 .
Select the correct answer using the code given below.
1. The number of straight lines that can be drawn by joining any two of these points is 380 .
2. The number of triangles that can be drawn by joining any three of these points is 1140 .
Select the correct answer using the code given below.
[NDA-II 2021]
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