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C++ Institute CPA-21-02 Exam - Topic 1 Question 46 Discussion

Actual exam question for C++ Institute's CPA-21-02 exam
Question #: 46
Topic #: 1
[All CPA-21-02 Questions]

What happens when you attempt to compile and run the following code?

#include

using namespace std;

int main() {

float i = 1.0 / 2 * 2 / 1 * 2 / 4 * 4 / 2;

cout << i;

return 0;

}

Show Suggested Answer Hide Answer
Suggested Answer: B

by Lindsey at Nov 01, 2025, 01:22 AM

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Ira
23 days ago
No way, it should definitely be 0.5 based on the operations.
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Della
28 days ago
But isn't it possible it rounds down to 0?
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Krissy
2 months ago
The order of operations makes it 1.
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Rutha
2 months ago
Wait, really? I thought it would be 0!
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Stefania
2 months ago
Definitely prints 1, no doubt about it.
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Alethea
2 months ago
I thought it would be 0.5, but I guess not!
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Otis
2 months ago
It prints: 1
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Ollie
2 months ago
Definitely D. The floating-point division ensures that the final result is 0.5, not some integer value.
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Sherly
3 months ago
D is the correct answer. The floating-point division operations preserve the decimal precision, resulting in the output 0.5.
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Candra
3 months ago
Haha, this is a classic trick question. The answer is clearly D, 0.5. Who would've thought that floating-point arithmetic could be so tricky?
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Jeniffer
3 months ago
I think the answer is B. The expression simplifies to 1 after the integer division operations.
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Nilsa
3 months ago
The answer is D. The expression 1.0 / 2 * 2 / 1 * 2 / 4 * 4 / 2 evaluates to 0.5.
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Eladia
3 months ago
I thought it would print 0.5, but now I'm second-guessing if the float type changes anything in the calculations.
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Weldon
3 months ago
I feel like this could print 0 because of how the divisions work out, but I can't recall the exact calculations.
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Elke
4 months ago
I agree, the calculations seem to lead to that.
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Marsha
4 months ago
I remember a similar question where division and multiplication were involved, and it ended up being 1. Maybe that's the case here too?
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Roxane
4 months ago
I think it prints: 0.5.
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Chandra
5 months ago
I think the order of operations might affect the result, but I'm not entirely sure how it works with floats.
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Carry
5 months ago
I've got a strategy - I'll work out the math by hand first, then test it in the code to see if I'm right.
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Alyce
5 months ago
I'm a bit confused by the mix of floats and integers. I'll need to double-check my understanding of how those interact.
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Muriel
5 months ago
Okay, let me think this through. I'm going to focus on the math first and then see how the output gets printed.
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Stevie
5 months ago
Hmm, this looks like it might involve some integer division. I'll need to be careful with that.
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Jenise
6 months ago
I'm not sure about this one. The order of operations could be tricky, but I think I'll try to work it out step-by-step.
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Aaron
7 days ago
The order of operations is confusing!
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Rasheeda
12 days ago
I’m leaning towards 0.5.
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Donette
18 days ago
I think it will print 1.
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Santos
4 months ago
I’m going with 2.
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Abel
4 months ago
I believe it will be 0.
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