AFCT Arithmetic Reasoning Practice Test 2025 – Comprehensive Exam Prep

To find the perimeter of the arrangement when 10 sheets of paper, each measuring 8 1/2 inches by 11 inches, are lined up side by side lengthwise, first, we need to determine the dimensions of this arrangement.

When the papers are lined up lengthwise (11 inches side), you will have the length increase while the width remains the same. Therefore, the total length of the arrangement will be the length of one piece of paper multiplied by the number of sheets:

Total Length = 11 inches × 10 = 110 inches.

The width remains the same as one piece of paper, which is 8 1/2 inches.

Now, the perimeter \( P \) of a rectangle is calculated by the formula:

\( P = 2 \times (Length + Width) \).

Substituting the values we found:

\( P = 2 \times (110 inches + 8.5 inches) \).

Calculating that gives:

\( P = 2 \times (118.5 inches) = 237 inches \).

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