Math Problem Statement
A company that makes crayons is trying to decide which 4 colors to include in a promotional mini-box of 4 crayons. The company can choose the 4 mini-box colors from its collection of 65 colors. How many mini-boxes are possible?
Solution
This problem involves finding how many ways we can choose 4 colors from a collection of 65 colors. Since the order in which we choose the colors doesn't matter, we need to use the combination formula.
The formula for combinations is given by:
where:
- is the total number of items (in this case, 65 colors),
- is the number of items to choose (in this case, 4 colors),
- denotes factorial (the product of all positive integers up to that number).
Substituting the values into the formula:
We can cancel the from the numerator and denominator, which simplifies to:
Now let's calculate this:
Therefore, the number of possible mini-boxes is:
Answer:
The company can create 677,040 different mini-boxes of 4 crayons.
Would you like further details on how this was calculated or have any questions?
Here are some related questions you might find interesting:
- What if the company wanted to create a mini-box with 5 crayons instead of 4?
- How many combinations would there be if the company had only 50 colors available instead of 65?
- How many ways could they select 3 colors from the 65?
- What if the order of colors mattered? How would the number of possible mini-boxes change?
- How would the solution change if we had to pick a specific color for the first crayon?
Tip: In problems where order doesn't matter, use combinations. When order matters, use permutations.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Combinatorics
Combinations
Formulas
Combination formula: C(n, r) = n! / [r!(n - r)!]
Theorems
Basic principles of combinations in combinatorics
Suitable Grade Level
Grades 9-12