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Optical illusion is a great example of brain exercise. They sharpen the mind and reduce stress. Here the numbers are given in a block with 73 written everywhere. There is a challenge for you, can you find the hidden number 37 in 10 seconds?
This puzzle tricks the eyes and tests your observational powers. If your eyes are sharp then you will find the hidden number in a few seconds. Most people fail in this. Take your own test.
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All numbers given in this block are 73. In such a situation, a number 37 which is the opposite of 73 is not easily visible. When many numbers start appearing similar, the brain creates confusion and is not able to easily find the hidden opposite number.
Look at the block carefully. Now look at all the numbers one by one. In the bottom row you will find the hidden 37.
Finding a hidden number in a group of similar numbers is difficult because our brains struggle with high-similarity, high-density visual search, a phenomenon driven by the “feature integration principle.” When distracting numbers are similar in size, shape, or color, they tend to blend together, creating visual noise that impairs the ability to focus.
If you can solve this puzzle in 12 seconds then you have high observation IQ. Usually only 2% people can answer it in such a short time. If you solve this puzzle in 1 minute then you have good concentration. Generally 20% people solve this puzzle in 1 minute and if it takes you more than 1 minute then you are a person with normal concentration.
