Use R please

For Exercises 15 through 23, use random numbers to simu- late the experiments. The number in parentheses is the num- ber of times the experiment should be repeated. 18. Lottery Winner To win a certain lotto, a person must spell the word big. Sixty percent of the tickets contain the letter b, 30% contain the letter i and 10% contain the letter g. Find the average number of tickets a person must buy to win the prize. (30)