### Brain Teasers

# What is It?

What is the missing number?

5 90 53 __ 11286 11249 11823

5 90 53 __ 11286 11249 11823

### Hint

The first step of the rule is *18, followed by two more steps, then repeated.### Answer

The rule is *18, -37, and +574. Then, repeat it once more.The number is 627.

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## Comments

What's the point of subtracting 37 and then adding 574? Why not just add 537?

i thought is was lousy...but points for trying

This teaser is practically impossible. And not to be mean, but it is the least liked on the website. Maybe you could make it a little easier next time? I applaud you for submitting a hard teaser, though, something not many people do.

Ummmm... Part of the point of teasers is actually stretching your brain out and trying to think of the answer. I agree w/above posts, though: this is practically impossible! Really, if you submit a teaser like this, you should provide some more clues and then a way that you could solve it mathematically in the answer. If everyone made up teasers randomly like this one, this would be a really disappointing site. I suggest you try a little harder on your next teaser!

This teaser is completely random.

There's no thought process at all.

In fact, it's the least popular teaser on the site!

.

.

.

Actually, I don't think it's THAT bad.

There's no thought process at all.

In fact, it's the least popular teaser on the site!

.

.

.

Actually, I don't think it's THAT bad.

I don't understand how 5*18 -37 +574 is 90?

^ It's a two-step sequence. So it works like this:

5

x18 = 90

+537=627

x18=11286

bit random, but definitely not impossible, and I quite liked how I was caught off guard by a standard mathematical sequence after all the other ones.

5

x18 = 90

+537=627

x18=11286

bit random, but definitely not impossible, and I quite liked how I was caught off guard by a standard mathematical sequence after all the other ones.

Definitely not impossible, in act I found it pretty easy. A good attempt, but definitely not my favorite teaser.

horrible. not to be m,ean but it is the least popular teaser on this site. I can tell that there were more comments but they were all so insulting that they were removed. Also this is impossible to figure out. I mean who's gonna say "oh, I bet the answer is x18 -37 +574." It should at least be in math if it has to be on this site.

I love math, but i have to say that this is a boring teaser. As someone else said its a good attempt but maybe make it a little easier and perhaps turn it into a story.

Incidentally it happens to be the least popular on the site, but I think people are just downrating it for difficulty. There is a difference between FUN and DIFFICULT.

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