PCEP Practice Question: Data Types, Variables, Basic I/O and Operators
This PCEP practice question tests your understanding of data types, variables, basic i/o and operators. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
x = 7
y = 2
result = x / y
print(type(result))
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
<class 'float'>
The code uses the `type()` function to determine the data type of the result of the expression `10 / 3`. In Python 3, the `/` operator always performs true division, which returns a floating-point number even if the operands are integers. Therefore, `10 / 3` evaluates to `3.3333333333333335` (a float), and `type()` returns `<class 'float'>`. Option C is correct.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
<class 'str'>
Why it's wrong here
Incorrect. Not a string.
✗
<class 'int'>
Why it's wrong here
Incorrect. / always returns float.
✓
<class 'float'>
Why this is correct
Correct. Division yields a float.
Related concept
Read the scenario before looking for a memorised answer.
✗
<class 'bool'>
Why it's wrong here
Incorrect. Not a boolean.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Python Institute often tests the distinction between `/` (true division) and `//` (floor division) in Python 3, and the trap here is that candidates mistakenly think integer division with `/` yields an integer, confusing it with Python 2 behavior or the `//` operator.
Detailed technical explanation
How to think about this question
In Python 3, the `/` operator implements true division as defined by the numeric tower, returning a `float` (or `complex` if one operand is complex). This differs from Python 2, where `/` performed floor division on integers. The `type()` function returns the exact class of the object, and for floats, it is always `<class 'float'>`. A common real-world scenario is calculating averages or ratios, where using `/` ensures a fractional result, avoiding integer truncation bugs.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the PCEP exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Data Types, Variables, Basic I/O and Operators — This question tests Data Types, Variables, Basic I/O and Operators — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: <class 'float'> — The code uses the `type()` function to determine the data type of the result of the expression `10 / 3`. In Python 3, the `/` operator always performs true division, which returns a floating-point number even if the operands are integers. Therefore, `10 / 3` evaluates to `3.3333333333333335` (a float), and `type()` returns `<class 'float'>`. Option C is correct.
What should I do if I get this PCEP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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