I recently started studying for the GRE and realized I hadn’t taken math in nearly nine years—my confidence disappeared fast. So I went back to basic high school math online. When I saw a viral math problem stumping the internet, I thought it’d be a perfect test of my skills… famous last words.
The problem, reportedly from Japan, went viral after only about 60% of people in their 20s solved it correctly. It looks simple but likely has tricks. Knowing my weak math skills, I didn’t even try to solve it myself—I turned to online tutorials instead. After all, if something’s confusing, someone online has probably already figured it out and explained it.