The villainous Dr. Schrödinger

has developed a growth ray and intends to create

an army of giant cats to terrorize the city. Your team of secret agents has tracked him

to his underground lab. You burst in to find… that it’s a trap! Dr. Schrödinger has slipped

into the next room to activate his device and disabled the control

panel on the way out. Fortunately, your teammates are

masters of spy-craft. Agent Delta has hacked

into the control panel and managed to reactivate

some of its functionality. Meanwhile, Agent Epsilon has

searched through surveillance to find the code for the door: 2, 10, 14. All you have to do is enter those numbers

and you’ll be free. But there’s a problem. The control panel has only three buttons: one which adds 5 to the display number, one which adds 7, and one which takes the square root. You need to make the display output

the numbers 2, 10, and 14,

in that order. It’s okay if it outputs different

numbers in between, but there’s no way to reset the display, so once you get to 2, you’ll have to continue

on to 10 and 14 from there. Not only that, Agent Delta explains that there are other traps

built into the panel. If it ever shows the same number

more than once, a number greater than 60, or a non-whole number, the room will explode. Right now, the display reads zero,

and time is running out. There’s only one way to solve the puzzle,

with a few small variations. How will you input the code to escape

from Dr. Schrödinger’s lair and save the day? Pause the video now if you want

to figure it out for yourself! Answer in: 3 2 1. You look over your options. Adding 5 or 7 increases the number, and the square root button

will make it smaller. But there are only a few options

where you can use that button: 4 9 16 25, 36, and 49. You’d love to make 4 or 16. Then you could hit the square root button

once or twice to get 2. But you can’t make either with

just the 5 and 7 buttons. What will you do? You look at the other possible options for

numbers you could take the square root of. Nine you can’t reach. Twenty-five and 49 would take you back to

5 or 7, and you can already get to each

of those. Thirty-six is your only option. You add 5, 7, 5, 7, 5, 7, and then hit the square root button. Why that series of 5s and 7s? It’s somewhat arbitrary, but you know that you want

to avoid 10, 14, and perfect squares, since you’ll need them later. This gets you to 6. Does that help? Looking at your options,

you see that 16 is now in your sights. You add 5 twice more to reach it. Then hit square root twice. That gets you to 2. You’re on your way! Now to 10. You can’t get straight

there through addition alone, so you’re going to have

to reach another square. Taking the square root of 9 or 25 would

get you to a good place, but it turns out that 25

is unreachable from 2. So you add 7 to get to 9, then take the square root again. That gets you to 3. Adding 7 again makes 10. Finally, you need to reach 14. Thinking backwards, you imagine where

you could be before 14: 7 or 9. But 9 won’t work because

you’ve already used 9. However, you could get to 7

by reaching 49 first. You add your way towards it, being careful not to hit any

of the numbers you’ve hit so far. You thread your way carefully, adding five 5s and two 7s. Then, square root to 7, and add 7 more. The door opens,

and you’re out of the trap. Thanks to your problem-solving skills, your team gets Schrödinger’s cats out

of the box in the nick of time. As for Schrödinger,

you can be certain of one thing: he’ll be spending quite some

time in a box of his own.

Sign up to be emailed the solution to the bonus riddle: https://brilliant.org/tededm2s3/! Also, if you sign up for a PREMIUM membership using one of our links, you will get 20% off the annual fee. Riddle on, riddlers!

By the title GET A GIANT DOG

Answer :22, 19, 38, 35, 32, 29 and 25

bonus riddle answer=11-3-3•2-3•2•2.

11-3-3=5

5•2=10

10-3=7

7•2=14

14•2=28

28-3=25

easy anybody else get the bonus riddle right?

7, 14, 21, 26, 31, 36, 6, 11, 16, 4, 2, 9, 3, 8, 13, 18, 25, 5, 10

This one that I came up with works

(((((((11-3)-3)*2)-3)*2)*2)-3) = 25

5-12-19-24-31-36-6-11-16-4-2-9-3-10-17-22-29-34-39-44-49-7-14 also works 🙂

11 -3

8 -3

5 x2

10 -3

7 x2

14 x2

28 -3

25

1. Confirm you have green eyes.

2. Ask Mr. Schrödinger to leave.

Me: (solves riddle)

Schrodinger: (grows cats while I'm still trapped)

Me: FML.

If I was the bad guy I would smash all the keys so there is no more functionality on the keys so no one can get in

First one I solved legit

Bonus Riddle answer (I Think)

11-3=8

8-3=5

5×2=10

10-3=7

7×2=14

14×2=28

28-3=25

Shrodigners cat 😂

Agent Epsilon-

Me: EPSILON 11 CODENAMED NINE-TAILED-FOX

HAS ENTERED THE FACILITYFirst ever riddle that I solved with a different answer to the video!

We take the square root of 0 which is 0 it’s the same number the computer explodes in a blast exploding the doctor and us. At least we’d die heroes

5, 12, 19, 24, 31, 36, 6, 11, 16, 4, 2, 9, 3, 10, 15, 20, 25, 30, 37, 42, 49, 7, 14.

The order of addition doesn't matter. But what you square does.

holly

11, 22, 19, 16, 13, 26, 23, 20, 40, 37, 34, 31, 28, 25. my answer's # of moves: 13

edit: i didn't use the solution to find the answer

Honestly, I would be fine with big cute fluffy cats roaming around……..

i don't even know why I'm watching these complicated math riddles when I can't even walk

5,12,19,24,31,36,6,11,16,4,2,9,3,10,15,20,27,32,37,42,49,7,14 also done it

JUST TELL THE GUY TO HACK IT AGIEN

Break down the door!!

My Solution:

To get 2:

+5, +7, +5, +7, +5, +7. sqrt, +5, +5, sqrt, sqrt

To get 10:

+7, sqrt, +7

To get 14:

+5, +5, +5, +5, +5, +7, +7, sqrt, +7

It's the same as the video solution as well. Summarized version

Bonus problem solution. The key to this question is working backwards. It is easier and more logical when you work backwards.

Full solutions below (including bonus and original problem with thinking process):

This is essentially a 2 working problem. But repeating it makes it 7 working

Step 1: Make number even

Step 2: Divide when possible

So only available operations is divide by 2 and +3. 25 to 11

25+3 = 28(To make it even. So that division is possible)

28/2 = 14(Divide when you can divide)

14/2 = 7(Divide once again as you want an odd number to find 11)

7 + 3 = 10(Get even number for division)

10/2 = 5(Divide when you can)

5+3 = 8(11 is in sight)

8+3 = 11 (shown)

Now do the opposite,

Divide is multiply

plus is minus

11 -3 = 8

8 – 3 = 5

5 * 2 = 10

10-3=7

7 * 2 = 14

14 * 2 =28

28-3 = 25

The original problem:

Solution:

To get 2:

+5, +7, +5, +7, +5, +7. sqrt, +5, +5, sqrt, sqrt

To get 10:

+7, sqrt, +7

To get 14:

+5, +5, +5, +5, +5, +7, +7, sqrt, +7

Same solution as video but summarized. There is also an alternative but requires more steps.

The key to that problem is essentially getting a perfect square. Forcing your way to a perfect square will be beneficial. Whatever step you do must help you to get a square

Ah'll try the bonus riddle

11-3=8

8-3=5

5*2=10

10-3=7

7*2=14

14*2=28

28-3=25

So the total operation is 7.

But I love cats, and you made all those super powers irl videos, so meh…..

11-8-5-10-20-40-37-34-31-28-25?

Just use a laser pointer it will do the job right

11 – 3 = 8

8-3=5

5×2=10

10×2=20

20-3=17

17×2=34

34-3=31

31-3=28

28-3=25!

9 moves!

i solved it but i got a different series of numbers

When you don't what the square root symbol means so you search it up-

Found alternate solution, but that one includes numbers > 60, so it is not a true solution

0, 5, 12, 17, 22, 27, 34, 41, 46, 51, 56, 61, 66, 71, 76, 83, 90, 97, 104, 111, 116, 121, 11, 16, 4, 2, 9, 3, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 77, 84, 91, 98, 103, 108, 113, 118, 123, 128, 133, 138, 143, 148, 153, 158, 163, 168, 175, 182, 189, 196, 14

The last riddle u can do 7x2x2-3 and u get 25 😂😂

Like if u got that one

👇🏻

I'm getting powerpuff vibes

11x2x2-3-3-3-3-3-3-3-3×2-3-3-3-3-3

answer to bonus riddle

I got 5-12-17-22-29-36-6-11-16-4-2-9-3-10-15-20-25-32-37-42-49-7-14

11 8 5 10 7 14 28 25 8 moves

Just add a c4

Bonus Riddle is easy. The Lowest number of moves is 3

Edit: Nvm. I thought it was the power of 2.

Edit the Second: The true answer is seven.

11 -3 (1) = 8 – 3 (2) = 5 x 2 (3) = 10 -3 (4) = 7 x 2 (5) = 14 x 2 (6)= 28 -3 (7) = 25

How ironic is it for you to be a supervillain that loves cats, and name yourself Schrodinger

THIS IS THE FIRST TED ED RIDDLE THAT I SOLVED WITHOUT HELP!!! HAHAHA THANK YOU TED EDDC

CATS? CATS? YOU MEAN THE AFRAID OF CUCUMBERS CATS?

I know the answer

But I won’t say.

Probably because I don’t know the answer.

If you’re masters, you should’ve posted a lookout.

1:23 why does this guy have one leg?

1:18 How can they repeat number 5 twice?

My solution:

5, 12, 17, 22, 29, 36, 6, 11, 16, 4, 2

9, 3, 10

15, 20, 25, 30, 35, 42, 49, 7, 14

Edit: Oh, I guess I have a very similar solution,

11,8,5,10,7,14,28,25. This was pretty easy!

11-3-3=5 5*2=10 10-3 = 7, 7*2 = 14 14*2= 28 28-3 = 25

For the bonus riddle:

11, 8, 5, 10, 20, 40, 37, 34, 31, 28, 25

Long solution but still works, I'll try finding a smaller solution later.

I haaaaaaaaaate tedes

What kind of computer keyboard has +5 and +7

Step one: get catnip

Step two: wait.

Answer:

Give the job to the other guys

Dr. Shrodingher…Hahahahhahahaha

I know I probably spelled that wrong

I know how to kill the cats water!

This is the first of your riddles I actually solved

BONUS QUESTION: take away 3 from 11 until you get 5, times it by 2 to get 10, again to get 20 and again to get 40 then take away 3 until you get 25, (10 moves)

Are math problems really riddles?

Isn't Schrodinger's cat like where you out a cat in a poisoned box and you don't know if it's dead or not unless you open the box? Like quantum probability?

The riddle's got nothing to do with cats its about numba's

I love this particular brand of problem- Fun brainteaser, and it actually got me thinking for once 😂💜💜💜

Bonus riddle answer 11×2 = 22 -3 -3-3-3-3×2×2-3

Before I watch the solution, my answer is 0 5 12 17 22 29 36 6 11 16 4 [2] 9 3 [10] 15 20 25 30 35 42 49 7 [14]

Aside from that, that is the strangest keypad I have ever seen. Why does it have a square root button?

For the bonus riddle, the best solution I was able to find was 7 moves.

11 8 5 10 7 14 28 25

yes

I get in the video then the first thing I see is “is the cat dead or alive”

Yay first somewhat difficult riddle I've gotten on this channel

is a giant cat really so bad?

Ya don't need to. Get out of the room, get a rock on a string or something, and swing it wildly. Chances are it will hit buttons in an order that will output a non-whole number, a number greater than 60, or a number that was entered before… BOOM. THE ROOM HAS EXPLODED, AND THE DOOR IS PROBABLY DAMAGED.Now you can just bash it down.

Ya don't need to. Get out of the room, get a rock on a string or something, and swing it wildly. Chances are it will hit buttons in an order that will output a non-whole number, a number greater than 60, or a number that was entered before… BOOM. THE ROOM HAS EXPLODED, AND THE DOOR IS PROBABLY DAMAGED.

Now you can just bash it down.

Bruh the answer is at 1:22 LOLOL

Its no fun a riddle video tell the answer right away…

For the second riddle, it's -3, x2, -3, x2, -3, -3, -3, -3, -3, -3, -3.

OMG I ACTUALLY DID IT!!!!!!

11 8 5 10 7 14 28 25

You can solve it with a C program

Perform BFS traversal on State space tree.

I can't know thismcause I am in fifth grade and don't know what the square route does comment on this if u know what it does

I would hire people to fix the machine

Here’s my way of solving the bonus riddle.

11 – 3 = 8 x 2 = 16 – 3 = 13 – 3 = 10 x 2 = 20 – 3 = 17 – 3 = 14 x 2 = 28 – 3 = 25

For extra riddle my best is 7: 11 -3 -3 x2 -3 x2 x2 -3 boom! Tell me if you got any better

Once 2 is reached everything's much easier

I'm reporting this video to YouTube. The "GIANT CAT ARMY" was clickbait.

One of the few ted riddles that I solved exactly right, feels so satisfying 🙂

I follow da wae of da recommend

i thought you couldnt get to 25

11-3-3=5

5*2=10

10-3=7

7*2*2=28

28-3=25

Schrodinger?

I thought Schrodinger put cats in boxes with bombs.

i’m so happy i solved it cuz i can’t solve any of the other riddles, but to be fair this one’s more math than logic or strategy and that’s probably why i could do it lol

Bonus question answer:

11 minus 3 two times equals 5, 5 times 2 three times equals to 40, 40 minus 3 five times equals to 25.

Hehe…

Schrodinger’s cats

I think answer is 11-8-5-10-20-40-……-28-25

He didnt even solve it if u look at rule 4.a) it says u cant use the same number twice but when he got 16 he used +5 twice

1:22 boom, I did it

I honestly never know where the riddle is going until the second they start explaining the riddle

Anyone plays the battle cats?

Problem at the end:

11-8-5-10-7-14-28-25