I break knots in every strand, Helping those who have it at hand, Often found inside the spot, Where cleaning's done quite a lot. What am I?
I am a place where all deliveries are returned to the sender, those who perform better need to do less work, and a lot of things get knocked over, but generally speaking, nothing gets broken.
What am I?
I have a stick of length 3 cm and I select 2 random points on it and break it at those points to get 3 pieces.
If the probability that these pieces will form a triangle is m/n where m and n are coprime integers then what is the value of m × n?
