# Math challenge: You can do it in 15 seconds with great concentration! Challenge

Are you looking for a stimulating activity to measure yourself and prove your intellectual abilities? IQ tests are a great way to regain motivation and develop problem-solving skills.

Now is the time for a challenge. We offer you a high-level IQ test that has already tested more than half of the participants.

Can you solve this math riddle in 15 seconds?

## Daily IQ Challenge

This IQ challenge is of difficult level and requires a good understanding of mathematics. This is a problem that requires determining the value of several objects in order to guess the value of the last one. You will need to determine the value of a basketball and a soccer ball to calculate the result of the last line. Before you start calculating, take the time to read carefully and understand what you need to find.

## Explanation of the solution to this mathematical challenge

Let’s start with the first line: 18/3 = 6. So, a basketball has a value of 6.

Then we know that 2 basketballs are worth 12 (6 + 6). So a soccer ball has a value of 21. Because 6 + (21 – 15) = 6+6 = 12

Finally, for the last row, we need to calculate 21+(21x(6/2)). Indeed, it is half a basketball, so 6/2 = 3 so the final calculation is 21+(21×3) = 21 + 63 = 84.