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Free GMAT Graphs & Tables Practice Question

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Five apartment buildings in rows; columns: units, occupancy rate (percent), average monthly rent. Sortable by any column.
Building	Units	Occupancy (%)	Avg rent ($)
Tower	120	84%	1,800
Plaza	90	95%	2,100
Court	150	88%	1,500
Harbor	80	92%	2,400
Garden	110	90%	1,950

The table shows, for five apartment buildings, the number of units, the occupancy rate, and the average monthly rent. The table can be sorted by any column. For each statement, select Yes if it must be true based only on the data shown; otherwise select No.

(1) When the buildings are sorted by occupancy rate from highest to lowest, Garden is in the bottom (last) row: . (2) The five buildings together have more than 500 occupied units: . (3) Among the buildings with an occupancy rate of at least 90%, every one charges average rent above $1,900: .

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Answer & Explanation

Correct answer

1: No · 2: No · 3: Yes

Statement 1 rewards actually sorting; Statement 2 rewards using occupancy rather than raw units; Statement 3 rewards conditioning on the right subset.

Statement 1, No. Sort by occupancy from highest to lowest: Plaza 95%, Harbor 92%, Garden 90%, Court 88%, Tower 84%. The bottom row after sorting is Tower, not Garden; Garden lands in the middle. Garden only looks like the bottom row because it is printed last in the original table. Trusting that printed position instead of sorting is exactly the mistake the statement sets up, so the answer is No.

Statement 2, No. Occupied units is units × occupancy: Tower 100.8, Plaza 85.5, Court 132, Harbor 73.6, Garden 99, for a total of 490.9. That is not more than 500, so the statement is false. The bait is to add up the raw Units column (120 + 90 + 150 + 80 + 110 = 550) and stop there; but not every unit is occupied, and once each building's occupancy rate is applied the total falls below 500.

Statement 3, Yes. First keep only the buildings with occupancy of at least 90%: Plaza (95%), Harbor (92%), and Garden (90%). Every one of those charges average rent above $1,900: Plaza $2,100, Harbor $2,400, Garden $1,950, so the statement is true. The trap is to check rent across all five buildings, see Court at $1,500 and Tower at $1,800, and answer No; but those two fall below the 90% cutoff and are not part of the comparison.

The through-line: sort before you judge a sorted position, apply the occupancy rate before you total, and condition on the stated subset before you count. Correct answers: No / No / Yes.