Short mock test · GMAT · 9 questions in 19 min 10 sec · 6 correct answers
Preview · sample data
Strong in Data Insights; needs reinforcement in Verbal Reasoning; needs work in Quantitative Reasoning. Reference points for this attempt: three questions per section. This report does not predict your test score.
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One point per correct answer; zero for an incorrect or unanswered question. Out of three questions: three correct: strong; two correct: needs reinforcement; one or zero correct: needs work.
Review · 9 questions
The other 6 questions have a review too: choose “All.”
A shop bought a box of identical notebooks for $360. It sold all but 6 of the notebooks, each at a price $2 higher than the price it had paid per notebook, and received $336 in total from these sales. How many notebooks were in the box?
The solution, step by step
Correct answer: B—30 notebooks in the box.
The method in action
The pitfall
A, 24: that is the number of notebooks sold. 24 × $14 = $336 satisfies the sales condition, but the question asks about the box, which held six more.
Key takeaways
Here, revenue increases with the number of notebooks, so testing the middle option shows which direction to search. Check how the quantity changes before using this strategy elsewhere.
A tank is three-fifths full. After 18 liters are removed, it is three-tenths full. What is the capacity of the tank, in liters?
The solution, step by step
D — 60 liters.
The method in action
The pitfall
36 liters is the initial amount, not the tank’s capacity.
Key takeaways
Compare two fractions of the same whole using the same conceptual denominator: the capacity.
Printer A produces 360 labels in 6 hours. Printer B produces 360 labels in 9 hours. Both printers work at constant rates. How many hours do they need to produce 250 labels when working together?
The solution, step by step
C — 2.5 hours.
The method in action
The pitfall
Adding 6 and 9 combines the time each needs to complete a full batch, not their simultaneous production rates.
Key takeaways
Before combining two machines, express both rates in the same units.
The argument
In March, the software firm Arventa moved its customer-support team to a four-day workweek. From March to August, the team took on average 15 percent less time to resolve a customer complaint than it had in the same months of the previous year. The firm’s operations director concludes that the four-day workweek has made the support agents more efficient.
Which of the following is an assumption on which the director’s conclusion depends?
The solution, step by step
Correct answer: D — the shorter processing time cannot be explained entirely by a change in the difficulty of complaints.
The method in action
The pitfall
B, “the only reason,” is too strong. The conclusion does not require the four-day workweek to explain the entire decrease, only to have contributed to it. Negate B—other causes also played a role—and the argument still holds.
Key takeaways
You can recognize an assumption by negating it: if the argument falls apart when it is negated, it is the right one.
Passage
A greenhouse grower installed soil-moisture sensors in half of its growing beds. Workers used the readings to decide when to irrigate those beds, while the remaining beds followed a fixed watering schedule. During the trial, the sensor-guided beds used less water and produced the same weight of harvested leaves per square meter.
The grower viewed this result as encouraging but did not immediately install sensors throughout the greenhouse. The trial had taken place during a mild month, and only one crop had been grown. The grower planned further trials during hotter conditions and with plants whose roots reached different depths. The initial result supported investigating the approach more broadly, rather than assuming that the same savings would occur in every bed.
Which statement best expresses the main idea of the passage?
The solution, step by step
B — an encouraging result needs further trials before it can be generalized.
The method in action
Key takeaways
A main idea must account for both the result and the caveat without ignoring either one.
Argument
A cafeteria surveyed people who already buy lunch there. Most respondents said they would choose a new vegetarian dish if it were offered. The manager therefore predicts that adding the dish will increase the total number of lunches sold each week.
Which information most weakens the manager’s prediction?
The solution, step by step
C — choosing the new dish would replace existing purchases.
The method in action
The pitfall
Weakening the prediction does not prove that no new customers will come; it shows that the cited survey provides little support for it.
Key takeaways
Keep the conclusion’s scope in view: sales of a new product and total sales are different questions.
No mistakes: all 3 questions are correct.
Is r greater than 10?
(1) r is greater than 8.(2) r is less than 12.
The solution, step by step
E — even together, the two statements are not enough to decide.
The method in action
Key takeaways
Narrowing an interval is not enough if it still crosses the threshold in the question.
| Employee | Months of service | Security training completed |
|---|---|---|
| Dana | 5 | Yes |
| Eli | 8 | No |
| Fara | 9 | Yes |
Sources B and C
Source B — Policy. Employees may request remote access only if they have at least six months of service and have completed security training.
Source C — Update. Dana now has seven months of service. Eli has completed security training. All other entries in the register are unchanged.
After the update, which employees meet both requirements for requesting remote access?
The solution, step by step
E — all three people meet both conditions.
The method in action
The pitfall
The update does not replace the record: it leaves out information that is still valid.
Key takeaways
A decision combines the rule, the initial state, and the relevant change.
| Reference | Day | Tickets resolved |
|---|---|---|
| 1 | Monday | 24 |
| 2 | Tuesday | 30 |
| 3 | Wednesday | 36 |
From Monday to Wednesday, the number of tickets resolved increased by what percent?
The solution, step by step
D — a 50% increase.
The method in action
Key takeaways
A relative change is measured against the starting value, even when the chart only shows levels.
No mistakes in Data Insights.
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