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IQ tests are a fun way to test your intellectual abilities and develop logical thinking. They offer tasks that need to be solved in a limited time, training reaction speed and analytical skills.

Such puzzles are especially popular among those who want to keep their brains in shape and develop out-of-the-box thinking. Today you have an interesting task: find the missing number in a mathematical series. See if you can solve it in just 7 seconds.

The figure shows a number line: 4, 7, 13, 25, 49. Your task is to determine the logical relationship between the numbers and find the number that comes after 49. To do this, you need to quickly identify a pattern in the sequence.

For those who managed to solve the riddle, the answer is 97. The numerical logic was that each subsequent number is equal to doubling the previous one and adding one (4×2+1=7; 7×2-1=13; and so on). This formula is a great example of how mindfulness and speed of thinking can help you cope with a task.

Congratulations to those who found the right solution in time. This shows a sharp mind and good analytical skills. For those who found the puzzle difficult, don’t be discouraged – regular practice will help improve your speed and accuracy in the future.

These math puzzles are not only fun, but also a way to train your brain. They increase your ability to analyze, identify patterns, and react quickly.