Mathematics Puzzle: Climbing up a Staircase
Here’s a short little puzzle I was asked at a job interview some time ago.
Suppose you have a staircase with n steps. You wish to climb up the staircase. At each point you either climb up one step, or make a small leap and jump up two steps - just like a normal human being […]
Mathematics Puzzle: Adding Random Numbers
I have no intention of turning this blog into a math blog, but every now and then I run into interesting mathematical puzzles. My two favorite fields are combinatorics and probability, and this puzzle belongs to one of them:
Suppose you start adding up random numbers chosen from the interval [0,1]. How many numbers, on the […]