CAT Exam  >  CAT Questions  >   There are 24 points on a plane such that 10 ... Start Learning for Free
There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.
Correct answer is '1904'. Can you explain this answer?
Most Upvoted Answer
There are 24 points on a plane such that 10 of them are collinear. No...
A circle can be drawn through any three points on a given plane, provided they are not collinear.
Now, there are 24 points, so the total number of ways three points can be chosen = 24C3
​However, if we choose any three of the given ten points that are collinear, we won't be able to form a circle.
Hence, those cases need to be excluded.
Total number of ways = 10C3
The total number of circles = 24C3 - 10C3
= 1904
Free Test
Community Answer
There are 24 points on a plane such that 10 of them are collinear. No...
Problem Statement:
There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.

Solution:

Understanding the Constraints:
To find the maximum number of circles that can be drawn through any three points, we need to consider the given constraints:
- There are 24 points on a plane.
- 10 of these points are collinear.
- No 4 points are vertices of a cyclic quadrilateral.

Analysis:
To find the maximum number of circles, we need to maximize the number of unique triplets of points that can form a circle. Let's consider the possible scenarios:

Scenario 1: No collinear points
In this scenario, all 24 points are non-collinear. To form a circle, we need 3 non-collinear points. Hence, the maximum number of circles in this scenario is C(24, 3) = 24! / (3! * (24 - 3)!) = 2024.

Scenario 2: Maximum collinear points
In this scenario, we assume that all 10 collinear points are part of every circle. To form a circle, we need 3 points. We can choose 3 points from the collinear set in C(10, 3) ways. For the remaining 14 non-collinear points, we can choose 3 points in C(14, 3) ways. Hence, the maximum number of circles in this scenario is C(10, 3) * C(14, 3) = 700 * 364 = 254800.

Scenario 3: Combination of collinear and non-collinear points
In this scenario, we consider a combination of collinear and non-collinear points. Let's assume we have 'a' collinear points and 'b' non-collinear points. To form a circle, we need 3 points. We can choose 3 points from the collinear set in C(a, 3) ways. For the remaining non-collinear points, we can choose 3 points in C(b, 3) ways. Hence, the maximum number of circles in this scenario is C(a, 3) * C(b, 3).

Optimization:
To maximize the number of circles, we need to find the scenario that yields the highest number of circles. Comparing the number of circles in each scenario, we find that Scenario 2 yields the maximum number of circles (254800).

Final Answer:
Hence, the maximum number of circles that can be drawn through any three points is 254800.
Attention CAT Students!
To make sure you are not studying endlessly, EduRev has designed CAT study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in CAT.
Explore Courses for CAT exam

Top Courses for CAT

There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer?
Question Description
There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer?.
Solutions for There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT. Download more important topics, notes, lectures and mock test series for CAT Exam by signing up for free.
Here you can find the meaning of There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer?, a detailed solution for There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? has been provided alongside types of There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice There are 24 points on a plane such that 10 of them are collinear. No 4 points are vertices of a cyclic quadrilateral. Find the maximum number of circles that can be drawn through any three points.Correct answer is '1904'. Can you explain this answer? tests, examples and also practice CAT tests.
Explore Courses for CAT exam

Top Courses for CAT

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev