Python Coding Challange - Question with Answer (01190925)

 

Step 1: Understand slicing

The syntax is:

list[start : stop : step]

• start → index to begin from (inclusive).

• stop → index to stop before (exclusive).

• step → how many steps to jump each time.

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Step 2: Apply to this code

• lst = [10, 20, 30, 40, 50]
  (indexes → 0:10, 1:20, 2:30, 3:40, 4:50)

• lst[1:4:2] means:

  • Start from index 1 → 20

  • Go up to index 4 (but don’t include it)

  • Step by 2

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Step 3: Pick the elements

• Index 1 → 20

• Index 3 → 40

👉 So result = [20, 40]

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✅ Final Output:

[20, 40]

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