Question

There are 4, 6, and 7 points on three lines. How many triangles with vertices at these points are possible?

Answer 1

Number of triangles = (Number of points on the first line) × (Number of points on the second line) × (Number of points on the third line)
Number of triangles = 4 × 6 × 7
Number of triangles = 168

Therefore, there are 168 possible triangles with vertices at these points.