Question

A money envelope contains five $10
bills, ten $20
bills, and fifteen $50
bills. Sandra randomly selects two bills without returning the first bill. What is the probability of getting a $10
bill then a $50
bill? Write your answer in the simplest form of fraction.(1 point)

Answer 1

There are 30 bills total. P(first is $10) = 5/30 = 1/6. Given that, there are 29 bills left with 15 being $50, so P(second is $50 | first $10) = 15/29. Multiply:

(1/6) * (15/29) = 15/174 = 5/58.