TS EAMCET 19-July-2022 Shift 2 Solved Paper

Given, 15 lines are concurrent at a point P. Now, if a line is not passing through a point P, thèn the triangle can be formed if those 15 times, concurrent at 2 points, so the required number of ways of forming a triangle =‌15C2
=‌

15×14

1×2

=15×7=105