Can You Solve This Japanese Viral Math Problem?

Looks easy, right? It turns out that 40% of young adults today get this wrong as opposed less than 10% in the 80s and 90s. That a pretty shocking statistic. Try to work it out and we’ll post the answer below. Good luck!!

Image source: MIC

Did you work it out? Scroll down to find out.

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So what answer did you get? Well the elusive answer is: ONE…. Surprised?? Watch the worked solution here.