PCEP Practice Question: Data Types, Variables, Basic I/O and Operators

Exhibit

Refer to the exhibit.
Code:
age = input('Enter your age: ')
print(age * 2)
Input:
Enter your age: 25

What is the output when the user enters 25?

⚠ Common exam trap

Python Institute often tests the distinction between string concatenation and numeric addition, exploiting the fact that input() returns a string, so candidates mistakenly assume the + operator will perform arithmetic.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

2525

When the user enters 25, the input() function returns the string "25". The print() function then concatenates the string "25" with itself using the + operator, resulting in "2525". This is because the + operator performs string concatenation when both operands are strings, not numeric addition.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Error
Why it's wrong here
Incorrect. The code runs without error.
✓
2525
Why this is correct
Correct. String replication.
✗
25
Why it's wrong here
Incorrect. Multiplication by 2 doubles the string.
✗
50
Why it's wrong here
Incorrect. Would require conversion to int.

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Last reviewed: Jun 30, 2026

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