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Mathematics

Collection by Mind Your Decisions • Last updated 2 hours ago

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Mind Your Decisions
Solving a tricky sum of square roots (Olympiad practice)

Solving a tricky sum of square roots (Olympiad practice)

Thanks to Devesh from India for the suggestion! A version of this problem was given in an Olympiad qualifying test.Socratichttps://socratic.org/questions/a-r...

What Is The Area Of This Infinitely Repeating Shape?

What Is The Area Of This Infinitely Repeating Shape?

If the first square has a side length equal to 1, what is the sum of all blue areas? Can you solve this fascinating problem?0:00 Problem1:11 Hint3:58 Solutio...

An epic limit! Mathematics, Math

An epic limit!

Can you solve this incredibly difficult calculus question? I had a lot of fun solving this one! Special thanks this month to: Kyle, Mike Robertson, Michael A...

Find the area of the middle rectangle Brain Teasers, The Middle, Maths, Bar Chart, Kids, Young Children, Mind Games, Boys, Bar Graphs

Find the area of the middle rectangle

Can you solve this geometry brain teaser?Note: I was emailed a similar problem but I am unable to locate the original source. It seems to be in the style of ...

Length of an elastic band around 3 circles Geometry Problems, Maths, Mathematics, Circles, Band, Maths Formulas, Math, Sash, Bands

Length of an elastic band around 3 circles

Can you solve this interesting geometry problem?ReferencesSolution by "WAY TO GOVT JOB" on YouTubehttps://www.youtube.com/watch?v=oGNWdhh5qzgStretched length...

A very challenging question about fractions Brain Teasers, Fractions, Riddles, Mathematics, Thankful, This Or That Questions, Kids, Math, Young Children

A very challenging question about fractions

Can you solve this challenging problem? Thanks to Ramesh for the suggestion!0:00 Problem1:18 Method 14:11 Method 2(Sorry about the repost! In the previous vi...

The area when two circles square off Geometry Problems, Mathematics, Circles, Letters, Math, Letter, Lettering, Calligraphy

Can you solve this viral geometry problem from Twitter?

Can you solve for the area of the square and the length of the tangent line? Special thanks this month to Fiona Harper, Kyle, Mike Robertson, Michael Anvari,...

A very nice problem from the UK Figure It Out, Don't Give Up, Giving Up, About Uk, Mathematics, This Or That Questions, Student, Nice, Math

Can you solve this tricky maths problem?

Students in the UK faced a similar question to this one. Don't give up--U can solve it!Adapted fromhttps://www.reddit.com/r/HomeworkHelp/comments/de402k/gcse...

A Tricky Puzzle Solved In 2 Ways! 2 Way, Science And Technology, Mathematics, Geometry, Puzzle, Math, Puzzles, Puzzle Games, Riddles

A Tricky Geometry Problem Solved In 2 Ways!

I received many requests for this challenging problem. Can you solve it? Thanks to Toli for the suggestion!Geometry solution in method 1http://128.192.17.191...

Can you solve this tricky algebra problem? Algebra Problems, Mathematics, Math

Can you solve this tricky algebra problem?

I had a lot of fun solving this one, and I think you will too!0:00 Problem0:49 Hints4:12 SolutionSubscribe: https://www.youtube.com/user/MindYourDecisions?su...

A Mesmerizing Area Puzzle Math Olympiad, Maths Puzzles, Mathematics, Broccoli, Bar Chart, The Creator, Cream, Math, Creme Caramel

Can you solve this fiendishly difficult math puzzle?

This problem is adapted from the first round of the 2017 Dutch Maths Olympiad. Special thanks this month to: Robert Zarnke, Marq Short, Kyle, Mike Robertson,...

The "Impossible" Ages of Sisters Puzzle Mathematics, Sisters, Puzzle, Age, Writing, Math, Puzzles, Being A Writer, Puzzle Games

The "Impossible" Ages of Sisters Puzzle

Asha and Lata are two sisters with mathematically interesting ages. If you write Lata's age after Asha's, you get a 4 digit perfect square. Amazingly the sam...

The challenging 7 squares puzzle from Vietnam 13 Year Olds, Mathematics, Squares, Vietnam, Bar Chart, Puzzle, Math, Puzzles, Bobs

The challenging 7 squares puzzle from Vietnam

Thanks to Thinh for suggesting this problem! What is the area of a single square? A version of this was given to 12-13 year olds in Vietnam. I admit I didn't...

A tricky problem with a "divine" answer! Real Numbers, Mathematics, Equation, Thankful, Youtube, Math, Equality, Youtubers, Youtube Movies

A tricky problem with a "divine" answer!

Can you solve this equation? Thanks to Hrigved for the suggestion!Referencehttps://math.stackexchange.com/questions/438452/find-all-real-numbers-such-that-sq...

The angle between rotated squares Confirmation, Maths, Mathematics, Angles, Instagram Story, Geometry, Squares, Turning, Gears

The angle between rotated squares

Can you solve this fun little geometry puzzle? Thanks to Roman for the suggestion!Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=...

Can You Solve The Two Boats Puzzle? Mathematics, Boats, Two By Two, Puzzle, The Unit, Math, Puzzles, Ships, Boat

Can you solve the two boats problem?

Two boats make a round trip from opposite shores of a lake. They meet and pass at 500 units from the left shore, then at 300 units from the right shore. The ...