Fun and games, **this IQ test** is perfect for having a good time while sharpening your skills.

**Today’s challenge** will test your math skills, but also your logic. You have 15 seconds to try to find the right answer.

## Overview of the IQ test

**IQ tests **are a great way to stimulate your mental abilities, maintain your memory and have fun at the same time.

Today’s mathematical puzzle will exercise your brain in a fun way. It is presented as a series of numbers arranged individually in squares. Your goal is to find the missing number in the last square.

At first glance, these series of numbers seem to have no relationship to each other. Using your sense of logic, you will be able to find similarities between these 3 numbers.

In order to spice up the mathematical puzzle, you have a time limit of 15 seconds to try to find the correct answer.

This time limit will tell you if you have a high intelligence quotient or not. So, make sure you have a stopwatch before you start. Remember to put yourself in a quiet place to maximize your concentration.

## Answer the math puzzle

Were you able to find the answer to this IQ test? If so, you are definitely a genius and your intellectual abilities are impressive.

**Don’t hesitate to try other puzzles to improve your cognitive functions while strengthening your critical thinking skills.** This type of challenge will also improve your problem-solving skills and refresh your mind.

If you haven’t managed to find the missing number, you can try again as many times as you like

. You can also try to solve other puzzles to practice. It’s interesting to know that playing these kinds of puzzles on a regular basis helps to improve your memory and other mental functions.

Now the explanation for this math challenge. You must multiply each first number by 3 and each second number by 4. Thus, you will have:

**3 x 3 = 9 and 9 x 4 = 36,****5 x 3 = 15 and 15 x 4 = 60,****7 x 3 = 21 and 21 x 4 = 84.**

If you liked this challenge, **you can share it with your friends and family so they can challenge themselves.**