Question

Maximum and minimum number of points of intersection of three lines are A and B respectively. Then A+B = ?
(3 Marks)

Answer 1

Three lines can intersect at 3 points (Maximum)

So, A = 3
(1 Mark)

Minimum number of points of intersection of three lines will be 1

So, B = 1
(1 Mark)
A+B = 4
(1 Mark)