Question
Mathematics Question on Coordinate Geometry
The number of straight lines that can be formed by joining 20 points of which 4 points are collinear is
A
183
B
186
C
185
D
190
Answer
185
Explanation
Solution
The correct option is (C):185
The number of straight lines that can be formed by joining 20 points of which 4 points are collinear is
183
186
185
190
185
The correct option is (C):185