The number of straight lines that can be formed by joining 20 points no three of which…
Mathematics · JEE Main · NTA Exams — Permutations and Combinations
The number of straight lines that can be formed by joining 20 points no three of which are in the same straight line except 4 of them which are in the same line
- 183
- 186
- 197
- 185
Answer
(D) 185
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