[Solved] What is the output of the following code? var numbers = new List<int> {1, 2, 3, 4, 5}; var result = numbers.Where(n => n > 3).Select(n => n * 2).ToList(); Console.WriteLine(string.Join(", ", result)); | C Sharp (C#)

C Sharp (C#) - LINQ Fundamentals

What is the output of the following code?

var numbers = new List<int> {1, 2, 3, 4, 5};
var result = numbers.Where(n => n > 3).Select(n => n * 2).ToList();
Console.WriteLine(string.Join(", ", result));

A1, 2, 3, 4, 5

B4, 6, 8, 10

C8, 10

D2, 4, 6, 8, 10

Step-by-Step Solution

Solution:

Step 1: Filter numbers greater than 3
The Where method selects numbers 4 and 5 from the list.
Step 2: Multiply filtered numbers by 2
The Select method transforms 4 to 8 and 5 to 10.
Final Answer:
8, 10 -> Option C
Quick Check:
Filter >3 then double = 8, 10 [OK]

Quick Trick: Filter first, then transform with Select [OK]

Common Mistakes:

MISTAKES

Applying Select before Where (wrong order)
Including numbers not greater than 3
Printing original list instead of result

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More C Sharp (C#) Quizzes

What is the output of the following code?

Step 1: Filter numbers greater than 3

Step 2: Multiply filtered numbers by 2

Final Answer:

Quick Check:

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