Praxis 5511 Practice Test Practice Question
Jennifer moved from her rectangular office, which was 10 feet wide and 15 feet long, into an office with a floor area of 212 square feet. How much greater is the floor area in Jennifer's new office than in her old office?
Correct Answer: B
Rationale: To determine how much greater the floor area is in Jennifer's new office compared to her old one, we first calculate the area of her old office. The area of a rectangle is found by multiplying its width by its length:
10 feet (width) × 15 feet (length) = 150 square feet.
Next, we compare this to the area of her new office, which is 212 square feet.
Now, we find the difference in area:
212 square feet (new office) - 150 square feet (old office) = 62 square feet.
Option A (60 sq ft) is incorrect as it underestimates the difference. Option C (65 sq ft) and Option D (68 sq ft) also do not reflect the accurate calculation, as they exceed the actual difference. Thus, 62 square feet accurately represents how much larger the new office is.
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