The Setup

You climb up a mountain, which takes the whole day, and camp at the top. The next day, you descend down the same trail and get to a spot where you exclaim: “Holey moley – I was at exactly this spot at the exact same time yesterday!”

Is the probability that this could be true closest to (A) 99% or (B) 50% or (C) 0.1%?

Take me to the answer