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What will be the output of this Python code?

medium📝 Predict Output Q4 of 15
Agentic AI - Production Agent Architecture
What will be the output of this Python code?
tasks = ['alpha', 'beta', 'gamma']
removed = tasks.pop()
tasks.insert(0, 'delta')
print(tasks)
A['delta', 'alpha', 'beta']
B['alpha', 'beta', 'delta']
C['alpha', 'beta']
D['beta', 'gamma', 'delta']
Step-by-Step Solution
Solution:
  1. Step 1: Understand pop()

    pop() without arguments removes the last element, 'gamma'.
  2. Step 2: Understand insert()

    insert(0, 'delta') adds 'delta' at the start of the list.
  3. Final Answer:

    After removal and insertion, tasks = ['delta', 'alpha', 'beta'] -> Option A
  4. Quick Check:

    Last element removed, new element inserted at front [OK]
Quick Trick: pop() removes last; insert(0, x) adds at front [OK]
Common Mistakes:
  • Assuming pop() removes first element
  • Confusing append() with insert()
  • Ignoring list order after operations

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