Q. The number of triangles that can be formed by 5 points in a line and 3 points on a parallel line is
A) $\ ^{8}C_{3}$
B) $\ ^{8}C_{3} -^{5}C_{3}$
C) $\ ^{8}C_{3} -^{5}C_{3} - 1$
D) None of these
Explanation
The correct answer is Option C: $\ ^{8}C_{3} -^{5}C_{3} - 1$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.