Question

Maximum number of points of intersection of four lines on a plane is:

• A. 4
• B. 6
• C. 8
• D. 5

Answer 1

The correct option is B 6

${}^4{C}_2=\frac{4!}{2!2!}=\frac{\mathrm{4.3.2.1}}{\left(2.1\right).\left(2.1\right)}=6$