the local lottery is found by randomly selecting 6 ping pong

the local lottery is found by randomly selecting 6 ping pong balls from a container in order without replacement. There are 30 ping pong balls inn the container numbered 0 through 29. What is the probability that you hold the winning ticket? How many tickets should you buy to give your self a 1% chance, 10%, 25%, and 50% chance of winning?