There are 8 lines in a plane, no two of which are parallel. What

There are 8 lines in a plane, no two of which are parallel. What
| There are 8 lines in a plane, no two of which are parallel. What is the maximum number of points at which they can intersect?

A. 15

B. 21

C. 28

D. None of the above

Please scroll down to see the correct answer and solution guide.

Right Answer is: C

SOLUTION

Each pair can have one intersection point

Number of pairs in 8 lines = 8C2 = 8! / (2! × 6!) = 28

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