If you draw 6lines on a piece of paper so that no 2 lines are parallel to each other and no 3 lines pass through the same point how many times will they intersect?

Ответ:

The number of intersections for non-parallel lines on a plane can be calculated using the formula:

Intersections = (n * (n - 1)) / 2

where "n" is the number of lines.

In your case, you have 6 lines, so the number of intersections would be:

Intersections = (6 * (6 - 1)) / 2

Intersections = (6 * 5) / 2

Intersections = 30 / 2

Intersections = 15

So, if you draw 6 non-parallel lines on a piece of paper, they will intersect at 15 points.