Refer to exercise 3 Resistors are randomly selected from the

Refer to exercise 3. Resistors are randomly selected from the box, one by one, until a 100omh resistor is selected. What is the probability that the first two resistors are both 50omh? What is the probability that a total of two resistors are selected from the box? What is the probability that more than three resistors are selected from the box?

I need the information refered to excercise 3 in order to help you to solve this problem.