Let's be honest, most of us completely forgot everything we'd ever learnt in our maths lessons the day after we sat our final exams. And unless you have a job that requires you to keep up to date with your knowledge of fractions, ratios, and algebra, there's a rather large chance you've never needed to use those skills in your day-to-day life.
So, when adults on the internet were given a children's maths question to work out, many of them were left completely stumped, with no idea how to work out the complex puzzle to find the right answer.
Can you solve it?
