PowerShell - Variables and Data Types
You want to calculate the average of three numbers: 4, 7, and 10 in PowerShell, ensuring the result is a floating-point number. Which script correctly does this?
You want to calculate the average of three numbers: 4, 7, and 10 in PowerShell, ensuring the result is a floating-point number. Which script correctly does this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand how to get floating-point average
Dividing by a floating-point number (3.0) forces floating-point division.Step 2: Check each option's effect
$avg = ([int](4 + 7 + 10)) / 3
casts sum to int (already int), division by int 3 gives integer division result truncated.
Write-Output $avg$avg = [int](4 + 7 + 10 / 3)
casts after dividing 10 by 3, changing order and result.
Write-Output $avg$avg = (4 + 7 + 10) / [int]3
divides by int 3, integer division.
Write-Output $avg$avg = (4 + 7 + 10) / 3.0
divides by 3.0, ensuring float result.
Write-Output $avgFinal Answer:
$avg = (4 + 7 + 10) / 3.0
Write-Output $avg -> Option DQuick Check:
Divide by float to get float average [OK]
Quick Trick: Divide by float (3.0) to get float result [OK]
Common Mistakes:
- Casting sum to int before division
- Dividing by int causing integer division
- Incorrect operator precedence
Master "Variables and Data Types" in PowerShell
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore PowerShell Quizzes