# The intelligence test goes viral on Facebook, but it's simpler than it seems

A mathematical problem labeled as the "intelligence test" has been exploding on Facebook, with millions of shares in the social network.

The claim behind the "test"? That anyone who understands the pattern between numbers has an IQ of 150, which is considered to be in the top one percent of the world's population.

But Presh Talwalker, author of several books and founder of Mindyourdecisions blogHe points out that readers never have to show that they really understand the rule behind the pattern.

It is said that the following equations are an "intelligence test"

6 + 4 = 210
9 + 2 = 711
8 + 5 = 313
5 + 2 = 37
7 + 6 = 113
9 + 8 = 117
10 + 6 = 416
15 + 3 = 1218

Then, ask what would A + B = 123 be?

The answer, according to your video, is 12 + 11 = 123.

News.com.au has a report on the solution:

For example, let's take 9 + 2 = 711. How do you get 711 of those numbers?

9 – 2 = 7

9 + 2 = 11

Write those two answers side by side and you get 711

So? +? = 123

If you divide the number in two: the answers you need to get are 1 and 23

See what numbers they will add to make 23. You should also be able to subtract from each other to give it 1.

12 – 11 = 1

12 + 11 = 23

Write them together and you get 123, so the answer is 12 + 11 = 123

## More math problems

At first glance, it seems easy. But over the years he has been perplexed, beginning in Japan.

The problem went viral in Japan after a recent study found that only 60 percent of people between the ages of 21 and 29 could get the correct answer: 90 percent in the 1980s.

Despite appearing simple, Presh Talwalker of Mind Your Decisions noted what had deceived most people.

"You must write an expression that groups a third as a group," he says in the video.

"Three divided by a third is equal to nine, and now we have nine minus nine, plus one," he added.

The solution goes back to an acronym that some learned in school: BODMAS, or brackets, open; divide; multiply; Add; and subtract, in that order.

It is also known as PEMDAS, or parentheses first, exponents (that is, powers and square roots), multiplication and division (from left to right), and addition and subtraction (from left to right).

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