The number of straight lines that can be formed by joining 20 points n – McqOptions

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1.	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 [Kerala (Engg.) 2002]
A.	183
B.	186
C.	197
D.	185
Answer» E.

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