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What is the output of the following Python code?list1=[80,90,100,120]print(list1[::-2]) [80,90][100,120][120, 90] checkErrorThank you for your attempt.2

Question

What is the output of the following Python code?

list1=[80,90,100,120]
print(list1[::-2])

Options:

  • [80,90]
  • [100,120]
  • [120, 90]

checkError Thank you for your attempt.

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Solution

The output of the given Python code will be [120, 90].

Here's the step by step explanation:

  1. list1[::-2] is a slicing operation in Python. The slice operator in Python is in the form [start:stop:step].

  2. In this case, start and stop are not provided, so Python will use the default values, which are the beginning and end of the list, respectively.

  3. The step is -2, which means Python will start from the end of the list and select every second element in reverse order.

  4. So, it will first select the last element, 120, then skip 100, then select 90, skip 80.

  5. Therefore, the output will be [120, 90].

This problem has been solved

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