A box has 900 balls. 90% are red.

incomplete, or intentionally tricky?”

In a real mathematical problem, we should trust the statement exactly as written.

And if we do that, 0 cannot be correct.

So we end up with two interesting viewpoints.

Viewpoint 1: Standard logic

Total balls: 900

Red balls: 90%

Not red: 10%

10% of 900 = 90

Answer: 90

Viewpoint 2: The playful puzzle interpretation

Imagine continue reading …