Triangle Maths Reasoning Puzzles: Find the Missing Number

This collection contains five triangle maths reasoning puzzles where each triangle holds four numbers connected by a hidden mathematical or logical pattern. Your task is to identify the relationship and find the missing number. These puzzles are designed to enhance problem-solving and logical reasoning skills.

1. Brain Teaser in Triangle Maths: Find the Missing Number

6. The logical reasoning is D=A+B-C

Each puzzle requires careful observation and step-by-step reasoning. Focus on how the numbers relate to each other—look for addition, subtraction, multiplication, division, or other logical patterns. This kind of structured thinking improves both maths aptitude and analytical skills.

Answers are provided immediately after each puzzle image so you can verify your solution and learn from your approach. To understand the notations used in the answers, refer to the last image at the end. 

At the end, there’s a bonus puzzle without an answer. Try solving it and post your solution in the comments to test your reasoning further.

2. Brain Teaser in Triangle Maths: Find the Missing Number

6. The logical reasoning is D=A+B+C-4

3. Brain Teaser in Triangle Maths: Find the Missing Number

24. The logical reasoning is D=AxBxC

4. Brain Teaser in Triangle Maths: Find the Missing Number

32. The logical reasoning is D=B^2-A-C

5. Brain Teaser in Triangle Maths: Find the Missing Number

44. The logical reasoning is D=A^2+B^2+C^2

Brain Teaser in Triangle Maths: Notations for Solution

Bonus Brain Teaser in Triangle Maths: Find the Missing Number

10. The logical reasoning is D=A+B+C

Check Out: 5 Tough Chess Puzzles for Advanced Players to Solve

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