To find the probability of drawing a black card from a deck of 108 cards, we will follow these steps:
- Determine the total number of cards: There are 108 cards in total.
- Identify the number of colors: The colors are red, yellow, green, and black, which means there are 4 colors.
- Calculate the number of black cards: Since the cards are evenly distributed among the colors, each color will have an equal number of cards. So we divide the total number of cards by the number of colors:
Number of black cards = Total cards ÷ Number of colors = 108 ÷ 4 = 27 - Calculate the probability: The probability of drawing a black card is the number of black cards divided by the total number of cards:
Probability of black card = Number of black cards ÷ Total cards = 27 ÷ 108 - Simplifying the probability: We can simplify this fraction:
27 ÷ 108 = 1 ÷ 4
Thus, the probability of picking a black card is 1/4.