Next in playlist:

Tested
Live from SVCC 2018! - Still Untitled: The Adam Savage Project - 4/10/18
Bollywood Loves This Math Problem - How Many Triangles? Mathematical Formula Explained!
This problem caught the attention of Bollywood celebs, including Sonam Kapoor, Aditi Rao Hydari, and Diana Penty, after fashion magazine editor Jitesh Pillai tweeted it. How many triangles are there? This is not just a simple test of observational ability. This is a common test question in India, and there is a clever mathematical method to count the triangles quickly and accurately. In the video I explain and prove the formula.

My blog post for this video
https://wp.me/p6aMk-7Xp

How many triangles? When Bollywood celebs tried to solve a math puzzle. April 9, 2018 by Shreya Das.
http://indianexpress.com/article/trending/trending-in-india/how-many-triangles-when-bollywood-celebs-tried-to-solve-a-math-puzzle-sonam-kapoor-jitesh-pillai-diana-penty-5130707/

Twitter moment how many triangles
https://twitter.com/i/moments/983330716846051328

How to count triangles in this shape trick (this is one of many similar videos that explains the pattern)
https://youtu.be/SCwTldmNir8?t=17s

If you like my videos, you can support me at Patreon:
https://www.patreon.com/mindyourdecisions

Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you.

My Blog: https://mindyourdecisions.com/blog/
Twitter: https://twitter.com/preshtalwalkar
Facebook: https://www.facebook.com/pages/Mind-Your-Decisions/168446714965
Google+: https://plus.google.com/108336608566588374147/posts
Pinterest: https://www.pinterest.com/preshtalwalkar/
Tumblr: https://preshtalwalkar.tumblr.com/
Instagram: https://instagram.com/preshtalwalkar/
Patreon: https://www.patreon.com/mindyourdecisions

Newsletter (sent only for big news, like a new book release): http://eepurl.com/KvS0r

If you buy from the links below I may receive a commission for sales. This has no effect on the price for you.

My Books
"The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 3.9/5 stars on 32 reviews)
http://amzn.to/1uQvA20

"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 4.6/5 stars on 3 reviews)
http://amzn.to/1o3FaAg

"Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.4/5 stars on 13 reviews.
http://amzn.to/1GhUUSH

"Math Puzzles Volume 2" is a sequel book with more great problems. (rated 4.3/5 stars on 4 reviews)
http://amzn.to/1NKbyCs

"Math Puzzles Volume 3" is the third in the series. (rated 3.8/5 stars on 5 reviews)
http://amzn.to/1NKbGlp

"40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.3/5 stars on 12 reviews)
http://amzn.to/1LOCI4U

"The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 4 reviews)
http://amzn.to/18maAdo

"Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 3 reviews)
http://amzn.to/XRm7M4
TODAY



Cody´s Lab
2018-04-20 16:42
24K Pure Gold Foil Ball
24K Pure Gold Foil Ball
MindYourDecisions
2018-04-20 09:24
(Corrected) The Seemingly Impossible Missing Book Pages Puzzle From India
(Corrected) The Seemingly Impossible Missing Book Pages Puzzle From India
TWiT Netcast Network
2018-04-20 04:16
Beer of the week: Hermit Thrush Brattleberry
Beer of the week: Hermit Thrush Brattleberry
YESTERDAY
CNET TV
2018-04-19 23:08
Welcome to the Westworld Morning After After Show
Welcome to the Westworld Morning After After Show
Sci Show
2018-04-19 23:00
3 Times Scientists Did Weird Experiments With Rubber Ducks
3 Times Scientists Did Weird Experiments With Rubber Ducks
TEDTalks
2018-04-19 22:02
Academic research is publicly funded -- why isn't it publicly available? | Erica Stone
Academic research is publicly funded -- why isn't it publicly available? | Erica Stone
Wranglestar
2018-04-19 21:05
Japanese Saw V.S. Western Saw - Which Cuts Faster?
Japanese Saw V.S. Western Saw - Which Cuts Faster?
Tested
2018-04-19 21:00
Testing the Tilta Gravity G2 Handheld Camera Gimbal
Testing the Tilta Gravity G2 Handheld Camera Gimbal
AsapSCIENCE
2018-04-19 18:00
What Happens When You Take Steroids?
What Happens When You Take Steroids?
I Like To Make Stuff
2018-04-19 17:52
How to Make a Modern Dresser // Woodworking
How to Make a Modern Dresser // Woodworking
Big Think
2018-04-19 17:00
Why populism is the greatest con in America | Martin Amis
Why populism is the greatest con in America | Martin Amis
DigitalRev TV
2018-04-19 16:07
DJI OSMO Mobile 2 Hands-on Review + Cinematic gimbal tricks!
DJI OSMO Mobile 2 Hands-on Review + Cinematic gimbal tricks!
Grant Thompson - "The King of Random"
2018-04-19 16:00
Playing With Slurp Juice
Playing With Slurp Juice
Android Authority
2018-04-19 15:00
Shanghai through the lenses of the Xiaomi Mi Mix 2S
Shanghai through the lenses of the Xiaomi Mi Mix 2S
Linus Tech Tips
2018-04-19 15:00
AMD Borrows Intel’s Business Plan – Ryzen 2 Review
AMD Borrows Intel’s Business Plan – Ryzen 2 Review
The Verge
2018-04-19 13:26
Nintendo Labo: build and code your own instruments
Nintendo Labo: build and code your own instruments
Tested
2018-04-19 09:16
Steve Wiebe Redeemed - This is Only a Test - 4/19/18
Steve Wiebe Redeemed - This is Only a Test - 4/19/18
CNET TV
2018-04-19 09:16
NASA's TESS exoplanet hunter launches on a SpaceX Falcon 9 rocket
NASA's TESS exoplanet hunter launches on a SpaceX Falcon 9 rocket
AvE
2018-04-19 07:10
PEW-PEW! Pneumatic Automation | Industrial Lego
PEW-PEW! Pneumatic Automation | Industrial Lego
The Khan Academy
2018-04-19 02:54
Confidence interval for the slope of a regression line
Confidence interval for the slope of a regression line
TWiT Netcast Network
2018-04-19 02:02
Microsoft Launches Azure Sphere for IoT Security
Microsoft Launches Azure Sphere for IoT Security
TEDTalks
2018-04-19 01:59
How quantum physics can make encryption stronger | Vikram Sharma
How quantum physics can make encryption stronger | Vikram Sharma
Electronics Engineering
2018-04-19 00:13
EEVblog #1076 - KRK Textile Dome Tweeter Teardown
EEVblog #1076 - KRK Textile Dome Tweeter Teardown
2018-04-18



Sci Show
2018-04-18 23:00
Why Nutrition Studies Keep Contradicting Each Other
Why Nutrition Studies Keep Contradicting Each Other
MIT
2018-04-18 22:55
Combining Chalk Talks and Slides in a Complementary Way
Combining Chalk Talks and Slides in a Complementary Way
MIT
2018-04-18 22:54
8.03SC Physics III: Vibrations and Waves Introduction
8.03SC Physics III: Vibrations and Waves Introduction
Linus Tech Tips
2018-04-18 21:00
Intel's Coolest CPU EVER... Thanks to AMD!
Intel's Coolest CPU EVER... Thanks to AMD!
Stanford University
2018-04-18 19:11
Stanford researchers find that swarms of tiny organisms churn ocean waters
Stanford researchers find that swarms of tiny organisms churn ocean waters
How Stuff Works
2018-04-18 18:33
HowStuffWorks Illustrated: Let's Learn Laundry Symbols
HowStuffWorks Illustrated: Let's Learn Laundry Symbols
Massachusetts Institute of Technology (MIT)
2018-04-18 17:48
Life-saving skills at MIT
Life-saving skills at MIT
Physics Woman
2018-04-18 17:21
Are machines better at quantum physics than humans?
Are machines better at quantum physics than humans?
Big Think
2018-04-18 17:00
How to spot high-conflict people before it’s too late | Bill Eddy
How to spot high-conflict people before it’s too late | Bill Eddy
The Royal Institution
2018-04-18 16:22
Q&A - Studying Saturn: The Legacy of the Cassini Mission
Q&A - Studying Saturn: The Legacy of the Cassini Mission
The Royal Institution
2018-04-18 16:21
Studying Saturn: The Legacy of the Cassini Mission - with Michele Dougherty
Studying Saturn: The Legacy of the Cassini Mission - with Michele Dougherty
BigcLiveDotCom
2018-04-18 15:42
Make a DIY flowing crystals lamp.  (Gillian's diamonds.)
Make a DIY flowing crystals lamp. (Gillian's diamonds.)
Android Authority
2018-04-18 15:00
What is Android Go? - Gary Explains
What is Android Go? - Gary Explains
The Verge
2018-04-18 15:00
Why Android notifications are better than the iPhone’s
Why Android notifications are better than the iPhone’s
Computerphile
2018-04-18 13:46
Radio Shack's TRS80 - Computerphile
Radio Shack's TRS80 - Computerphile
Tested
2018-04-18 04:03
We're Nominated for Webby Awards!
We're Nominated for Webby Awards!
Marques Brownlee
2018-04-18 03:29
$750 Mini Boosted Board Impressions!
$750 Mini Boosted Board Impressions!
Wranglestar
2018-04-18 02:35
How To Make A Beautiful Wood Saw Sheath
How To Make A Beautiful Wood Saw Sheath
CNET TV
2018-04-18 02:00
Google AIY Vision Kit teaches you to track faces
Google AIY Vision Kit teaches you to track faces
2018-04-17
The Khan Academy
2018-04-17 21:37
Chi squared test for association (independence)
Chi squared test for association (independence)
Linus Tech Tips
2018-04-17 21:00
Apple REFUSED to Fix our iMac Pro
Apple REFUSED to Fix our iMac Pro
NASA Goddard
2018-04-17 20:08
NASA Celebrates Earth Day and the Amazing Tech that Makes Earth Exploration Possible
NASA Celebrates Earth Day and the Amazing Tech that Makes Earth Exploration Possible
NASA Goddard
2018-04-17 20:03
How to View and Share Your Planet with Worldview
How to View and Share Your Planet with Worldview
Matthias Wandel
2018-04-17 19:25
Relay box to automatically turn on my dust collector
Relay box to automatically turn on my dust collector
AsapSCIENCE
2018-04-17 18:43
LAB RULES - Dua Lipa
LAB RULES - Dua Lipa "New Rules" Parody
Austin Evans
2018-04-17 17:53
Should You Buy a $500 MacBook?
Should You Buy a $500 MacBook?
Big Think
2018-04-17 17:30
Why a more diverse workplace is a more talented one | Ram Charan
Why a more diverse workplace is a more talented one | Ram Charan
Grant Thompson - "The King of Random"
2018-04-17 16:00
Don't Put Lithium Batteries in Liquid Metal
Don't Put Lithium Batteries in Liquid Metal
Android Authority
2018-04-17 15:00
Honor View10 vs Huawei Mate 10 Pro
Honor View10 vs Huawei Mate 10 Pro
Cody´s Lab
2018-04-17 14:40
Burning Oxygen In Propane Atmosphere
Burning Oxygen In Propane Atmosphere
TEDTalks
2018-04-17 14:11
The rhythm of Afrobeat | Sauti Sol
The rhythm of Afrobeat | Sauti Sol
MindYourDecisions
2018-04-17 02:12
Solve If You Are A Genius. Korean TV Show Puzzle
Solve If You Are A Genius. Korean TV Show Puzzle
The Khan Academy
2018-04-17 02:11
Chi squared goodness of fit example
Chi squared goodness of fit example
CNET TV
2018-04-17 01:38
Russian hackers are targeting millions of routers (CNET News)
Russian hackers are targeting millions of routers (CNET News)
2018-04-16
TWiT Netcast Network
2018-04-16 22:04
What Mark Zuckerberg Should Have Told Congress
What Mark Zuckerberg Should Have Told Congress
Wranglestar
2018-04-16 21:23
Don't Mess With A GINGER NINJA
Don't Mess With A GINGER NINJA
Smarter Every Day
2018-04-16 21:19
The Infinadeck Omnidirectional Treadmill - Smarter Every Day 192 (VR Series)
The Infinadeck Omnidirectional Treadmill - Smarter Every Day 192 (VR Series)
Linus Tech Tips
2018-04-16 21:00
Buy a Video Card Without Getting SCREWED
Buy a Video Card Without Getting SCREWED
Marques Brownlee
2018-04-16 19:20
Thank You!
Thank You!
ElectroBOOM
2018-04-16 17:24
Why 3 Phase AC instead of Single Phase???
Why 3 Phase AC instead of Single Phase???
NASA Goddard
2018-04-16 17:16
How Winking Stars Point Us To Distant Worlds
How Winking Stars Point Us To Distant Worlds
BigcLiveDotCom
2018-04-16 16:50
Inside a pink ring light for phones.
Inside a pink ring light for phones.
Tested
2018-04-16 16:00
Adam Savage Repairs Totoro Cosplay!
Adam Savage Repairs Totoro Cosplay!
TEDTalks
2018-04-16 15:56
Need a new idea? Start at the edge of what is known | Vittorio Loreto
Need a new idea? Start at the edge of what is known | Vittorio Loreto
Big Think
2018-04-16 15:51
Why even CEOs need to ask for help: How Alan Mullaly turned Ford around | Dennis Carey
Why even CEOs need to ask for help: How Alan Mullaly turned Ford around | Dennis Carey
The Verge
2018-04-16 15:00
This suit vibrates when asteroids near Earth
This suit vibrates when asteroids near Earth
Deep Sky Videos
2018-04-16 11:53
M18 and the rotating galaxy - Deep Sky Videos
M18 and the rotating galaxy - Deep Sky Videos
TWiT Netcast Network
2018-04-16 05:56
While Zuck is Away, Facebook's Lobbyists Play
While Zuck is Away, Facebook's Lobbyists Play
2018-04-15
PC Hardware and Software Reviews
2018-04-15 23:09
?BenQ ScreenBar e-Reading LED Task Lamp Review
?BenQ ScreenBar e-Reading LED Task Lamp Review
CNET TV
2018-04-15 23:05
Can we guess the Galaxy S9's celebrity AR emojis?
Can we guess the Galaxy S9's celebrity AR emojis?
Sci Show
2018-04-15 23:00
6 Diseases That Have Shaped Human History
6 Diseases That Have Shaped Human History
AvE
2018-04-15 18:10
BOLTR: Bosch Hot Glue Pen | USB Lithium
BOLTR: Bosch Hot Glue Pen | USB Lithium
Mike and Lauren
2018-04-15 17:50
How I Program WITHOUT Knowing How to Code
How I Program WITHOUT Knowing How to Code
GreatScott
2018-04-15 17:23
Make your own Sensored ESC ||  Electric Bike Conversion (Part 1)
Make your own Sensored ESC || Electric Bike Conversion (Part 1)
RedKB
2018-04-15 17:00
I Can't Solve this Stretchlabacus Puzzle!  ????
I Can't Solve this Stretchlabacus Puzzle! ????
Wranglestar
2018-04-15 16:20
How To Build A Single Log Bridge 2
How To Build A Single Log Bridge 2
Grant Thompson - "The King of Random"
2018-04-15 16:00
Molten Salt vs Oil
Molten Salt vs Oil
Big Think
2018-04-15 15:36
Is the Trump presidency a religious cult? | Reza Aslan
Is the Trump presidency a religious cult? | Reza Aslan
TWiT Netcast Network
2018-04-15 03:55
Real-Time Translation Apps
Real-Time Translation Apps
PC Hardware and Software Reviews
2018-04-15 01:08
?Soul Impact OE Wireless High Efficiency Over-Ear Headphones Review
?Soul Impact OE Wireless High Efficiency Over-Ear Headphones Review
PC Hardware and Software Reviews
2018-04-15 01:07
? SOUL X-SHOCK - True Wireless Earphones Review
? SOUL X-SHOCK - True Wireless Earphones Review
Electronics Engineering
2018-04-15 00:42
EEVBlog #1075 - Digital BitBox Hardware Wallet Review
EEVBlog #1075 - Digital BitBox Hardware Wallet Review
2018-04-14
Sci Show
2018-04-14 23:00
Why Do Some Shots Make Your Arm Hurt So Much?
Why Do Some Shots Make Your Arm Hurt So Much?
Linus Tech Tips
2018-04-14 21:08
Put a Desktop GPU in a LAPTOP… The CHEAP WAY!
Put a Desktop GPU in a LAPTOP… The CHEAP WAY!
TEDTalks
2018-04-14 19:46
For survivors of Ebola, the crisis isn't over | Soka Moses
For survivors of Ebola, the crisis isn't over | Soka Moses
Austin Evans
2018-04-14 19:39
Is a Used Gaming Laptop Worth It?
Is a Used Gaming Laptop Worth It?
Grant Thompson - "The King of Random"
2018-04-14 16:00
Fortnite Rocket Slammer Pt. 2
Fortnite Rocket Slammer Pt. 2
BigcLiveDotCom
2018-04-14 15:21
Inside a very clever LED headlight lamp.
Inside a very clever LED headlight lamp.
Linus Tech Tips
2018-04-14 08:32
Facebook sucks, Future AMD GPUs could be GREAT! - WAN Show Apr.13 2018
Facebook sucks, Future AMD GPUs could be GREAT! - WAN Show Apr.13 2018
TWiT Netcast Network
2018-04-14 05:26
Warranty-voiding & the Right to Repair
Warranty-voiding & the Right to Repair
Marques Brownlee
2018-04-14 02:23
Pixel 3 Rumors? Ask MKBHD V27!
Pixel 3 Rumors? Ask MKBHD V27!
Stanford University
2018-04-14 01:55
Compassion in Health Care - Contemplation By Design Summit 2017, Stanford University
Compassion in Health Care - Contemplation By Design Summit 2017, Stanford University
Electronics Engineering
2018-04-14 01:30
EEVblog #1074  - Custom LCD Design - Part 2
EEVblog #1074 - Custom LCD Design - Part 2
Stanford University
2018-04-14 01:23
Tibetan Medicine warm oil massage - Contemplation By Design Summit 2017, Stanford University
Tibetan Medicine warm oil massage - Contemplation By Design Summit 2017, Stanford University
The Khan Academy
2018-04-14 00:50
Current due to closing a switch
Current due to closing a switch
CNET TV
2018-04-14 00:39
Gmail is about to get a redesign (CNET News)
Gmail is about to get a redesign (CNET News)
Stanford University
2018-04-14 00:23
Two former ambassadors discuss the future of NAFTA and U.S.-Mexico relations
Two former ambassadors discuss the future of NAFTA and U.S.-Mexico relations
The Khan Academy
2018-04-14 00:06
Current through resistor in parallel
Current through resistor in parallel
2018-04-13
NASA Television
2018-04-13 23:30
Human Exploration Rover Challenge on This Week @NASA – April 13, 2018
Human Exploration Rover Challenge on This Week @NASA – April 13, 2018
Sci Show
2018-04-13 23:00
These 'Fossilized Brains' Might Not Be Brains At All
These 'Fossilized Brains' Might Not Be Brains At All
Mike and Lauren
2018-04-13 22:43
Liquor Cabinet with SAFE
Liquor Cabinet with SAFE "CRACKING" ROBOT!
The Khan Academy
2018-04-13 22:09
Tension, weight, friction and normal forces in free body diagrams
Tension, weight, friction and normal forces in free body diagrams
Android Authority
2018-04-13 20:56
Samsung Galaxy S9 vs iPhone X Camera Shootout
Samsung Galaxy S9 vs iPhone X Camera Shootout
AvE
2018-04-13 20:36
Non-Contact Voltage Tester | How does it work?
Non-Contact Voltage Tester | How does it work?
Massachusetts Institute of Technology (MIT)
2018-04-13 20:18
Marathon Monday at MIT
Marathon Monday at MIT
TEDTalks
2018-04-13 18:52
A rite of passage for late life | Bob Stein
A rite of passage for late life | Bob Stein
Tested
2018-04-13 18:00
Hands-On with VR OmniDirectional Treadmill!
Hands-On with VR OmniDirectional Treadmill!
The Verge
2018-04-13 16:01
Is Facebook listening to your conversations?
Is Facebook listening to your conversations?
Grant Thompson - "The King of Random"
2018-04-13 16:00
Fortnite Rocket Slammer Pt. 1
Fortnite Rocket Slammer Pt. 1
Android Authority
2018-04-13 15:00
OPPO R15 Pro Review: Notch what I was hoping for..
OPPO R15 Pro Review: Notch what I was hoping for..
Henders 007
2018-04-13 14:46
Tim's Amazing Cork Toys and Tricks
Tim's Amazing Cork Toys and Tricks
Matthias Wandel
2018-04-13 13:30
Dedicated table saw dust collector
Dedicated table saw dust collector
TWiT Netcast Network
2018-04-13 04:31
Facebook Faces Congress
Facebook Faces Congress
TEDTalks
2018-04-13 03:30
What if gentrification was about healing communities instead of displacing them? | Liz Ogbu
What if gentrification was about healing communities instead of displacing them? | Liz Ogbu
BigcLiveDotCom
2018-04-13 02:21
USB flesh-burning pen for ladies.  Because apparently they do that.
USB flesh-burning pen for ladies. Because apparently they do that.
CNET TV
2018-04-13 02:00
Product Red iPhone 8 Plus, unboxed
Product Red iPhone 8 Plus, unboxed
Sci Show
2018-04-13 01:06
The Hardest We've Ever Pushed Matter
The Hardest We've Ever Pushed Matter
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