Arithmetic Ability
Permutations and Combinations

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Q.

There are 7 non-collinear points. How many triangles can be drawn by joining these points?

View Answer

Correct choice: C

Explanation:

A triangle is formed by joining any three non-collinear points in pairs. There are 7 non-collinear points The number of triangles formed = 7C3 = 35
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