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In how many ways can 6 different objects be selected and arranged in a line?
In how many ways can 6 different objects be selected and arranged in a line?
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Q1
In how many ways can 6 different objects be selected and arranged in a line?
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The number of arrangements of 6 different objects is 6! = 720.
Questions & Step-by-step Solutions
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Q
Q: In how many ways can 6 different objects be selected and arranged in a line?
Solution:
The number of arrangements of 6 different objects is 6! = 720.
Steps: 7
Show Steps
Step 1: Understand that we have 6 different objects to arrange.
Step 2: Realize that arranging these objects means we are looking for the number of different ways to order them.
Step 3: Recall the mathematical concept of factorial, denoted as 'n!', which means multiplying all whole numbers from n down to 1.
Step 4: For 6 objects, we calculate 6! (6 factorial).
Step 5: Calculate 6! = 6 × 5 × 4 × 3 × 2 × 1.
Step 6: Perform the multiplication: 6 × 5 = 30, then 30 × 4 = 120, then 120 × 3 = 360, then 360 × 2 = 720, and finally 720 × 1 = 720.
Step 7: Conclude that there are 720 different ways to arrange the 6 objects in a line.
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