This question written for 14-year-olds has gone viral, with adults around the world struggling to figure it out.

Uhhhhh… pass? (via Facebook)

Once we're out of school, most adults don't want to be tested. We honestly would rather not answer any difficult questions, unless they're about the color of a dress. Still, we like to think we'd be able to keep up.

That's why it's so distressing to find out this mind-bending question was intended for 14-year-olds competing in the Singapore and Asian Schools Math Olympiads (SASMO). It's actually the first time a SASMO question has been leaked before the test, so for all we know, they're all like this. How smart are these kids??

Sources: Study Room | Mashable