Can you solve this viral math problem in 7 seconds? 27 + 4 x (10 – 7) stumps many

A seemingly simple mathematical equation is causing a stir on social media, with a significant number of people struggling to solve it correctly, let alone within a seven-second time limit. The challenge, presented as '27 + 4 x (10 – 7) = ?', tests users' grasp of fundamental mathematical rules.

The key to unlocking the correct answer lies in adhering to the established order of operations, commonly known by acronyms like PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) or BODMAS (Brackets, Orders, Division and Multiplication, Addition and Subtraction). Ignoring this hierarchy can lead to incorrect results, turning an apparently straightforward calculation into a mental hurdle.

To solve the problem step-by-step: First, calculate the expression within the parentheses: (10 – 7) = 3. Next, perform the multiplication: 4 x 3 = 12. Finally, complete the addition: 27 + 12 = 39. The correct result is 39.

Beyond being a mere brain teaser, engaging with mental arithmetic exercises like this offers substantial cognitive advantages. Research, including a study from Princeton University published in the Journal of Neuroscience, suggests that practicing mathematical calculations strengthens brain areas associated with logic, reasoning, and memory, which in turn can enhance decision-making abilities. These exercises contribute to overall cognitive function and mental agility.