Math Problem Statement
a clock consists of 5 parts and can be assembled in any order. A qualified control engineer wants to test each other for efficiency of assembling. how many orders are there? permutation and combination question
Solution
To determine the number of ways the 5 parts of a clock can be assembled in any order, we are dealing with permutations, as the order of assembly matters.
The number of permutations for distinct objects is calculated as:
Here, . Therefore:
Thus, there are 120 different ways to assemble the 5 parts of the clock in any order.
Additional Information:
- If the order did not matter (combination), the formula would be different. However, in this problem, order is crucial.
- The factorial growth in permutations explains why the number of orders increases so rapidly as the number of parts increases.
Would you like a detailed explanation of permutations and combinations or their applications in real-world problems?
Follow-Up Questions:
- How would the answer change if there were 6 parts instead of 5?
- What is the difference between permutations and combinations in simple terms?
- How can permutations be useful in project management or manufacturing efficiency studies?
- What happens to the total permutations if two parts are indistinguishable?
- How do factorials relate to probability problems in a similar context?
Tip:
Remember, permutations apply when order matters, and combinations apply when order does not matter. Always clarify the context to choose the correct formula!
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Math Problem Analysis
Mathematical Concepts
Permutations
Factorial Growth
Formulas
n! = n × (n - 1) × (n - 2) × ... × 1
Theorems
Permutation Theorem
Suitable Grade Level
Grades 9-12