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Problem Solving Butler: May 2025
May 15PS 1PS 2

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PS 1

What is the sum of the multiples of 4 from 60 to 100, both inclusive?

A. 240
B. 800
C. 860
D. 880
E. 960
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PS 2

In how many ways can 10 identical chocolates be distributed among three children such that each child gets at least one chocolate?

A. 36
B. 66
C. 72
D. 78
E. 84
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Critical Reasoning Butler: May 2025
May 15CR 1CR 2

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CR 1

The ancient Spartans relied on conquest far more than did citizens of other, similarly sized Greek cities. Historians have hypothesized that it was a paucity of agricultural resources that drove the Spartans to subjugate so much foreign territory. This hypothesis is difficult to confirm directly, as sufficiently detailed records of Spartan agricultural output did not survive the medieval periods. However, careful comparison between the pattern of Sparta’s conquests and climate records kept by nearby civilizations show that the Spartans launched a higher number of military campaigns during years when regional agriculture suffered due to inclement weather. This indicates that there is some merit to the hypothesis.

In the argument given, the two boldfaced portions play which of the following roles?

A. The first presents an explanatory hypothesis; the second states the argument’s main conclusion.
B. The first presents an explanatory hypothesis; the second presents evidence in order to support an alternative explanation.
C. The first presents an explanatory hypothesis; the second presents evidence that tends to support this hypothesis.
D. The first describes a position opposed by the argument; the second presents evidence to undermine the support for the opposed position.
E. The first describes a position opposed by the argument; the second states the argument’s main conclusion.

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A software has been designed to help nuclear power plants determine the necessity of an emergency shutdown, in the event of a drop in coolant pressure by analyzing the drop and comparing it against a database of 10,000 simulated nuclear coolant failure scenarios. The software is meant to help nuclear power plant workers determine whether a disruption in the plant’s coolant flow is severe enough to lead to a meltdown, necessitating an emergency shutdown.

In order to assess the effectiveness of the software for its stated purpose, it would be most helpful to establish which of the following?

A. Whether the nuclear coolant failure scenario database will receive regular updates of new simulations.
B. Whether nuclear power plant workers routinely misjudge the severity of drops in coolant pressure.
C. Whether a significant number of nuclear safety professionals will vouch for the software.
D. Whether the database also includes simulations of scenarios wherein coolant flow is stable.
E. Whether the use of this software will enable nuclear power plant workers to make sound decisions regarding the necessity of an emergency shutdown, before a meltdown occurs.
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Data Sufficiency Butler: May 2025
May 15DS 1DS 2

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DS 1

A regional express train normally travels from Northgate Station to Lakeside Station by its regular route and has a fixed scheduled travel time for that route. On one day, because of track maintenance, the train traveled from Northgate to Lakeside by a detour route instead. Was the train’s travel time that day more than 2 hours longer than the scheduled travel time?

(1) The train’s average (arithmetic mean) speed on the detour route differed from its average (arithmetic mean) speed on the regular route by no more than 20 kilometers per hour.
(2) The distance the train traveled on the detour route differed from the distance on the regular route by no more than 40 kilometers.
______________________
DS 2

At a science quiz, Team Atlas consisted of Elena, Hugo, and Liam, and Team Nova consisted of Mia, Theo, and Nora. If a team’s score was the average (arithmetic mean) of the three scores earned by its members, what was Team Atlas’s score?

(1) Elena scored 15 points more than Mia, Hugo scored 6 points fewer than Theo, and Liam scored 18 points fewer than Nora.

(2) If Mia had scored 18 points more, Team Nova’s score would have been 20% greater than Team Atlas’s score.
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Problem Solving Butler: May 2025
May 18PS 1PS 2

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PS 1

#N denotes the sum of the first N positive integers. How many prime numbers lie between #10 and #12?

A. 3
B. 4
C. 5
D. 6
E. 7
______________________
PS 2

If 2x > q – 10 and |q| < 4, which of the following cannot be a value of x ?

A. -7
B. -6
C. -5
D. -4
E. -3
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Critical Reasoning Butler: May 2025
May 18CR 1CR 2

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CR 1

The extract of the cacao leaves was considered a miracle cure-all in the 1800s. Doctors believed that a mixture of the extract and wine, if drunk regularly, could kill off parasitic infestations, destroy tumors, and revitalize living tissue.

Which of the following, if true, most strongly indicates that the logic of the belief described above is flawed?

A. To make the cacao leaf extract safer to consume, it could be diluted with alcohol without weakening its desired effects.
B. Since tumors are living cells, the mixture would affect them in the same way that it would affect living tissue.
C. It cannot be presumed that the use of a particular medication is always appropriate.
D. If the suggested treatment were put into effect on a wide scale, healthcare costs would be lower than they are now.
E. Because consuming the cacao leaf extract would alter the consumer’s metabolism, a new diet would have to be designed for them to remain healthy.

________________________
CR 2

The city of Dreaming has a population of 60,000 and only one home insurance provider, Endless Insurance. The city’s welfare department calculated that a homeowner earning the city’s median income of $60,000 a year could afford Endless Insurance’s median-priced home insurance coverage, which costs $7,000. The welfare department based this calculation on a 12 percent annual interest rate and on the assumption that Dreaming’s homeowners could only afford to allocate up to five percent of their respective incomes towards insurance.

Which of the following corrections of a figure mentioned in the above passage, if it were the only necessary correction, would lead to a new calculation indicating that even incomes below the median income would permit homeowners to afford Endless Insurance’s median-priced home insurance coverage?

A. The total population of the city of Dreaming is 57, 000.
B. The annual payment rate on Endless Insurance’s home insurance policies is 10 percent.
C. The median-priced home insurance offered by Endless Insurance costs $8,000.
D. The median income in the city of Dreaming was $55,000.
E. Dreaming’s homeowners can afford to allocate only four percent of their income towards insurance.
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Data Sufficiency Butler: April 2025
May 18DS 1DS 2

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DS 1

A beverage company prepared two batches of sports drink, Batch A and Batch B, by mixing electrolyte concentrate with water. Batch A contained 25% electrolyte concentrate by volume, and Batch B contained 40% electrolyte concentrate by volume. What was the volume of Batch A?

(1) The total volume of electrolyte concentrate in the two batches was 34 liters.
(2) The total volume of the two batches was 100 liters.
________________________
DS 2

A home-goods warehouse inspected a shipment of ceramic mugs for glazing flaws. Of the mugs in the shipment, 70% were blue-glazed, and the rest were not blue-glazed. Of the mugs that were not blue-glazed, 2/5 had a glazing flaw. What percentage of the blue-glazed mugs did not have a glazing flaw?

(1) If one mug is selected at random from the shipment, the probability that it will have a glazing flaw is 0.32.

(2) If one mug with a glazing flaw is selected at random from the shipment, the probability that it will be blue-glazed is 5/8.
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Problem Solving Butler: May 2025
May 19PS 1PS 2

______________________
PS 1

If a > b^2 > √c, which of the following can be true?

I. a > b > c
II. c > b > a
III. a > c > b

A. I only
B. II only
C. I and II only
D. I and III only
E. I, II, and III
______________________
PS 2

A team of 3 boys and 4 girls is to be made from a team of 5 boys and 6 girls. Sam, who is one of the boys, is selected only if his sister, Eloise, who is one of the girls, is also selected. How many different teams are possible?

A. 75
B. 100
C. 120
D. 150
E. 200
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Critical Reasoning Butler: May 2025
May 19CR 1CR 2

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CR 1

Biologist: The relationship between our brains and our sensory organs is fascinating. We evolved these organs to better navigate our physical reality. However, doing so does not require our brains to process every bit of information our sensory organs provide. Rather, to function well, our brain analyzes only information relevant to the current situation and builds a generalized image.

The biologist’s statements, if true, most strongly support which of the following conclusions?

A. At least some people’s brains analyze all information provided by their sensory organs in at least some situations.
B. Their brains analyzing every bit of information provided by their sensory organs could help at least some people navigate the physical reality differently than they otherwise would.
C. If brains build a generalized image of reality using information relevant to the current situation, people can often navigate their physical reality better than they otherwise would.
D. Processing every bit of information provided by our sensory organs would be incompatible with the ability to build a generalized image from that information.
E. Building a generalized image requires a clear picture of most if not all details of the physical reality of any situation.

_______________________
CR 2

Monarch butterflies migrate much farther than do other insects of similar size. The reason for this behavior is that the range of atmospheric conditions in which monarch butterflies can survive is especially narrow, forcing the butterflies to travel more frequently and extensively to find a suitable habitat.

Which of the following, if true, most helps to confirm the explanation above?

A. Some monarch butterflies migrate over an area 10 times larger than the area over which any other insect of similar size migrates.
B. The monarch butterfly is more resilient to changes in atmospheric conditions than members of most other insect species.
C. During their breeding season, monarch butterflies must find a habitat suitable for both themselves and their newly hatched young.
D. Sometimes individual monarch butterflies spend their entire lives near a single location and never migrate.
E. Monarch butterflies migrate larger distances in years when atmospheric conditions stray further from the range healthy for them than they do in years when atmospheric conditions remain favorable to them.
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NEW - Reading Comprehension Butler!


Reading Comprehension Butler: May 2026
May 19RC 1
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New question from Ron Purewal: https://gmatclub.com/forum/established- ... 57918.html (RC)

New question from Ron Purewal:

1. https://gmatclub.com/forum/in-the-decim ... 54389.html (PS)
2. https://gmatclub.com/forum/a-stores-ann ... 54420.html (DS)
3. https://gmatclub.com/forum/a-company-ma ... 54472.html (Two-part Analysis)
4. https://gmatclub.com/forum/a-large-pet- ... 54535.html (Critical Reasoning)
5. https://gmatclub.com/forum/gaston-took- ... 54569.html (PS)
6. https://gmatclub.com/forum/a-motorized- ... 54596.html (DS)
7. https://gmatclub.com/forum/gasoline-pow ... 54633.html (Two-part Analysis)
8. https://gmatclub.com/forum/until-last-y ... 54736.html (Two-part Analysis)
9. https://gmatclub.com/forum/a-drugstore- ... 54764.html (Graphs)
10. https://gmatclub.com/forum/the-graph-sh ... 54796.html (Graphs)
11. https://gmatclub.com/forum/a-consulting ... 54883.html (Tables)
12. https://gmatclub.com/forum/a-team-of-re ... 54908.html (MSR)
13. https://gmatclub.com/forum/public-healt ... 55419.html (CR)
14. https://gmatclub.com/forum/a-consulting ... 55420.html (Tables)
15. https://gmatclub.com/forum/a-consulting ... 55421.html (Tables)
16. https://gmatclub.com/forum/a-consulting ... 55422.html (Tables)
17. https://gmatclub.com/forum/robust-test- ... 55423.html (TPA)
18. https://gmatclub.com/forum/granville-an ... 55439.html (RC)

__________________________
19. https://gmatclub.com/forum/for-much-of- ... 56953.html (RC)
20. https://gmatclub.com/forum/cause-relate ... 57039.html (RC)
21. https://gmatclub.com/forum/established- ... 57918.html (RC)

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