GMAT Row / Column Comparison practice questions
Row / Column Comparison is a high-yield GMAT topic. Work through these practice questions to build accuracy and speed before test day.
Free Row / Column Comparison practice
5 sample questions
| Week | Channel A | Channel B | Channel C |
|---|---|---|---|
| 1 | 120 | 130 | 140 |
| 2 | 130 | 120 | 150 |
| 3 | 110 | 140 | 130 |
| 4 | 140 | 130 | 120 |
The table shows the number of app installs from three different marketing channels over a four-week period. For each of the following statements, indicate whether the statement can be inferred from the information provided.
The total number of installs from Channel A is greater than from Channel B.
The average number of installs per week from Channel C is less than 150.
Channel B had the highest number of installs in at least one week.
| Line | Defect Rate (%) | Production Volume |
|---|---|---|
| A | 3.5 | 5000 |
| B | 4 | 4000 |
| C | 2.8 | 6000 |
| D | 1.2 | 7000 |
| E | 1.5 | 8000 |
| F | 7 | 3000 |
The table shows defect rates and production volumes for six manufacturing lines. For each statement, evaluate whether it is definitively true based on the table data.
Line A's defect rate is at least 25% higher than Line C's defect rate.
Combining Lines D and E would result in fewer defective units than Line B produces.
Lines with production volumes below 5000 units have higher average defect rates than those above 5000 units.
| Channel | Month 1 | Month 2 | Month 3 |
|---|---|---|---|
| A | 500 | 600 | 400 |
| B | 450 | 550 | 400 |
| C | 700 | 500 | 300 |
| D | 550 | 500 | 550 |
The table shows the number of app installs from four different marketing channels over a three-month period. For each statement, indicate whether the statement can be inferred from the table.
Channel D had the most consistent monthly install numbers across all three months.
The combined installs from Channels A and B in Month 2 exceeded Channel C's installs that same month by more than 25%.
Channel B's installs decreased by the same percentage from Month 1 to Month 2 as they did from Month 2 to Month 3.
| Installs | CPI | Conversion |
|---|---|---|
| 50 | 1.2 | 18 |
| 80 | 1 | 22 |
| 100 | 0.8 | 19 |
| 120 | 0.9 | 21 |
A marketing team analyzed app installs from four advertising channels over a 30-day period. The table shows the number of installs, cost per install , and conversion rate (percentage of installs that became active users) for each channel. For each of the following statements, select Yes if the statement can be confirmed as true based solely on the information in the table. Otherwise, select No.
The combined cost for installs from Channels B and C was greater than the combined cost for installs from Channels A and D.
At least one channel had both a CPI below $1.00 and a conversion rate above 20%.
The channel with the lowest CPI accounted for more than 30% of total installs across all channels.
| Line | Units Produced | Defective Units |
|---|---|---|
| A | 1200 | 50 |
| B | 1600 | 60 |
| C | 1800 | 60 |
| D | 2100 | 100 |
| E | 1100 | 40 |
| F | 970 | 55 |
A manufacturing plant tracks defects per production line. The table below shows the number of units produced and defective units detected for each line in the last quarter. For each of the following statements, indicate whether the statement is true or false based on the table data.
Line D has a higher defect rate than Line A.
The average defect rate across all lines is less than 5%.
Exactly two lines have defect rates below 4%.
Line F has the highest number of defective units among all lines.
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