... and why!

less than 1m read

·Nov 10, 2024

The reason this trick works every single time is elegantly simple. It has everything to do with the fact that their chosen card will always be in a pack that is third from the top.

That's because we had them take the pack containing their card, see? There's Boron, and put it on one of the piles. Then we had them put two more piles on top of that one.

So this stack is in order: pack number one, pack number two, pack number three, which contains their card, and at the bottom, pack number four. When they deal the cards out into rows, they are changing the packs into layers.

See, here we go! We've got 1, 2, 3, four cards. These are the cards that made up pack number one. Here comes pack number two; it is now becoming the second layer.

The third layer will be the components of pack number three, including Boron, their card. So when they finish and take the pack containing their card, because it is part of the third layer, it will be the third from the top, which means it will always be the third card from the left. Boron. [Music]

Held Captive by Qaddafi’s Troops in Libya: A Photographer’s Story | Nat Geo Live

Per capita GDP trends over past 70 years | Macroeconomics | Khan Academy

View All

What It's Like to Make a Show About the Islamic State | The State

We carried out about 18 months of research for the state National Geographic drama. We had a team of researchers based in Britain working internationally. There’s a huge amount of material on social media. There’s a huge amount of video material posted by…

Terry Crews Skydives Over Iceland | Running Wild with Bear Grylls

Like a dream. Let’s get your chute up. I’m ready. Here we go. BEAR GRYLLS: Terry Crews and I just landed on a small airfield in the Icelandic mountains. Last night, he told me that skydiving was on his bucket list. Well, Terry, be careful what you wish f…

Finding missing side when given area | Math | 3rd grade | Khan Academy

The picture has an area of 80 square cm. What is the width of the picture? So here’s our picture: this super fun giraffe listening to music. Our picture’s shape is a rectangle, and we’re asked to find the width of that rectangle. Well, maybe we don’t kn…

Dilating triangles: find the error | Performing transformations | Geometry | Khan Academy

We are told triangle A’B’C’ is the image of triangle ABC under a dilation whose center is P and scale factor is three-fourths. Which figure correctly shows triangle A’B’C’ using the solid line? So pause this video and see if you can figure this out on you…

Khan Academy Live: SAT Math

Hello and welcome to Khan Academy live SAT. I’m Eric, I’m an SAT tutor and one of the SAT experts here at Khan Academy, and I’m so excited to be with you today and over the course of the next few weeks as we cover SAT Math, reading, and writing with one c…

Indestructible Coating?!

From the top of this forty-five meter drop tower, my friends from the “How Ridiculous” YouTube channel are about to release a watermelon. Here we are. In free fall for a full three seconds, the watermelon accelerates to over 100 kilometers per hour before…

... and why!

More Articles