GED Mathematical Reasoning Exam - Topic 4 Question 1 Discussion

Actual exam question for GED's GED Mathematical Reasoning exam

Question #: 1
Topic #: 4

[All GED Mathematical Reasoning Questions]

Exhibit.

The dimensions of the rectangle shown at the left are represented by 9n and 6n.

Which of the following represents the PERIMETER of the rectangle?

A15n

B30n

C30

D9n 2

E54n 2

Show Suggested Answer

Suggested Answer: B

by Lenna at May 29, 2026, 02:43 AM

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Lezlie

24 hours ago

I think the perimeter is 30n.

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Sanda

6 days ago

I thought it would be something like 54n²?

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Latricia

11 days ago

Totally agree, 30n makes sense!

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Tenesha

16 days ago

Wait, how do we know it's just 30n?

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Donette

22 days ago

That's 2(15n), which is 30n!

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Huey

27 days ago

The perimeter is 2(length + width), so it's 2(9n + 6n).

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Caprice

1 month ago

I believe the formula is 2(9n + 6n), which should help me find the right answer. I just need to remember to simplify it correctly!

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Jose

1 month ago

I’m a bit lost on how to apply the dimensions 9n and 6n. Does that mean I just add them directly?

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Tamra

1 month ago

I think I practiced a similar question where we had to find the perimeter using variables. I feel like it was something like 2(length + width).

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Delfina

2 months ago

I remember that the perimeter of a rectangle is calculated by adding all the sides together, but I’m not sure how to set that up with the variables.

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