There are 10 points in a plane. No three of these points are in a straight line. What is the total number of straight lines which can be formed by joining the points?

Question

Quantrex Academy · Accepted Answer

Correct answer: B. 45

A straight line can be formed by joining 2 points. Total number of straight lines = ^ 10 C_2=(10 × 9)/(2 × 1)=45

There are 10 points in a plane. No three of these points are in a...

Options

Correct answer

Step-by-step solution

More from Permutation and Combination