As an incentive to get new customers, the local branch of a bank launched "bouncing for bucks." During this week long event, any customer opening a new checking account with the bank would have the opportunity to throw a bouncy rubber ball into a large box divided into squares. Each square was labeled with a dollar amount that would be deposited into his/her new checking account. The way the box was labeled is shown below. Out of the next three customers that come into the bank and play the game, what is the probability that at least one gets $50?

10 30 10 30 10

20 10 50 10 20