Another tricky math and general knowledge question. Another question to test your IQ in front of your friends or in your math quiz. This question is a part of an arithmetic progression lesson. It may look simple, but a lot of arithmetic thinking and logic is required.

Well, but we are here to save your life. It seems like this is one of the most common arithmetic questions that someone can ask you whether in an exam or in a friend group.

So, keep reading the article, and we are going to disclose the answers and methods.

We will tell you the answer first. The answer is 13. Now we are going to explain it to you.

It is all about grouping the numbers in sequence and subtracting them to find out their differences and finding out the order of the numbers behind the increase and decrease of the numbers in the given sequence. So, as you can see, it is all about grouping and subtracting to find the order of the numbers in the sequence.

It is very simple if you think about it, subtraction and grouping is the key to solving it.