When buying a new dress, you have a choice of 3 different lengths, 5 different colors, and 2 different styles. How many choices are there for one dress?
A. 13
B. 15
C. 30
D. 32
D. 32 (3 lengths x 5 colors x 2 styles = 30, but since we're asked for the number of choices, we include not choosing a length/color/style as an option, so 30 + 2 = 32)
There are 25 people competing in a race. In how many ways can they finish in first and second place?
A. 49
B. 400
C. 600
D. 625
D. 625
There are 25 options for first place and 24 options for second place (since the winner cannot also be the runner-up). Therefore, the total number of ways they can finish in first and second place is 25 x 24 = 600.
To calculate the number of choices for one dress, you need to multiply the number of choices for each category together.
Given:
- 3 different lengths
- 5 different colors
- 2 different styles
So, the total number of choices for one dress would be: 3 (lengths) x 5 (colors) x 2 (styles) = 30
Therefore, the correct answer is option C. 30.