Which of the following is the correct way to calculate the sum of all integers in a list named numbers in C#?

easy📝 Syntax Q3 of 15

C Sharp (C#) - LINQ Fundamentals

Which of the following is the correct way to calculate the sum of all integers in a list named numbers in C#?

Avar total = numbers.Count();

Bvar total = numbers.Sum();

Cvar total = numbers.Average();

Dvar total = numbers.Length;

Step-by-Step Solution

Solution:

Step 1: Identify sum syntax
The Sum() method calculates the total of all elements.
Step 2: Exclude incorrect options
Count() returns number of elements, Average() returns mean, and Length is not valid for List.
Final Answer:
var total = numbers.Sum(); -> Option B
Quick Check:
Sum() method sums list elements [OK]

Quick Trick: Sum() adds all elements [OK]

Common Mistakes:

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