Question

Janet wants to purchase a new car. At the car dealership, a salesperson tells her she can choose from 10 car models, 7exterior colors, and 9 interior colors.

How many ways can Janet customize a car? Enter your answer as a whole number, like this: 425

So I got 120 from using nCr(10,7) on a calculator
But I got it wrong so can somebody help with this question for this combination

Answer 1

uhh isnt it just 10×7×9=630

Answer 2

630

Explanation:

Use the Fundamental Counting Principle to find the total number of possible combinations.

Car Models = 10

Exterior colors = 7

Interior colors = 9

=> 10 * 7 * 9 = 630

Hence the total number of combinations possible would be 630 outcomes.