Please help

Suppose we are playing a slot machine and want to figure out whether we can win the jackpot. To win the jackpot, we need three "jackpot" symbols to show up in a row. We look at the machine and notice each of the three wheels spin independently and have 20 symbols each. You notice that the first wheel has 2 "jackpot" symbols, the second wheel has 4 "jackpot" symbols and the last wheel has 1 "jackpot" symbols. What is the probability that you will hit the jackpot? (Give four decimal places)