How can i be able to solve this and can i get a answer and explanation

Which number produces an irrational number multiplied by 1/3

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)