Question 1
A car model has 5 colors, 7 engine types, and 5 interior options. How many different different car configurations can be made?
Step-by-Step Solution:
Concept: This problem uses the Fundamental Counting Principle (Multiplication Rule). When making sequential independent choices, multiply the number of options at each step.
Analysis:
- First choice: 5 options
- Second choice: 7 options
- Third choice: 5 options
Calculation:
Total ways = 5 × 7 × 5 = 175
Key Principle: For independent sequential events, multiply the number of choices at each stage.
Verification: Each of the 5 first choices can be paired with each of the 7 second choices (5×7=35), and each of these can be combined with any of the 5 third choices.
Concept: This problem uses the Fundamental Counting Principle (Multiplication Rule). When making sequential independent choices, multiply the number of options at each step.
Analysis:
- First choice: 5 options
- Second choice: 7 options
- Third choice: 5 options
Calculation:
Total ways = 5 × 7 × 5 = 175
Key Principle: For independent sequential events, multiply the number of choices at each stage.
Verification: Each of the 5 first choices can be paired with each of the 7 second choices (5×7=35), and each of these can be combined with any of the 5 third choices.