Python Coding Challange - Question With Answer(01160125)

 

Explanation:

1. Input List:
   The input list is numbers = [1, 2, 3, 4].

2. Lambda Function:
   The lambda x: x * 2 function takes each element x from the list and multiplies it by 2.

3. Using map() Function:
   The map() function applies the lambda function to each element of the list. Here's the breakdown:

   • For x = 1: 1 * 2 = 2
   • For x = 2: 2 * 2 = 4
   • For x = 3: 3 * 2 = 6
   • For x = 4: 4 * 2 = 8

4. Converting to a List:
   The result of the map() function is a map object. Using list() converts the map object into a Python list: [2, 4, 6, 8].

5. Output:
   The print() function displays [2, 4, 6, 8].

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Other Options Explained:

• a) [1, 2, 3, 4]: Incorrect. This would be the original list without applying the lambda function.
• c) map object: Incorrect. The map() function alone returns a map object, but the list() function converts it into a list.
• d) [1, 4, 9, 16]: Incorrect. This would be the result if the lambda function was lambda x: x ** 2 (squares each number).