Originally published by Sharon Choong Kam Chong on Nov. 9th, 2015.
Don’t think too much on this one.
Suppose there is your usual deck of 52 cards plus a joker lying face-down on the table. After mixing them up, you turn the 53 cards over, one at a time. What is the probability that you turn over all of the 4 aces before you turn over the joker?
