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05 Feb 2026, 22:34
Kudos
Bookmarks
| Problem Solving Butler: February 2025 | ||
| February 6 | PS 1 | PS 2 |
__________________________
PS 1
The total area of a certain city is 3.7 x 10^12 square inches. Which of the following is the closest approximation of the area of the city in square miles? (1 square mile is approximately 4 billion square inches)
A. 800 square miles
B. 900 square miles
C. 9,000 square miles
D. 10,000 square miles
E. 9 million square miles
__________________________
PS 2
Of 600 households surveyed, 200 spent at least $80 per month on both cola and juices, 100 spent at least $80 per month on cola but not juices, and for every household that did not spend at least $80 per month on cola or juices, 4 spent at least $80 per month on juices but not cola. How many of the households surveyed spent at least $80 per month on juices but not cola?
A. 60
B. 75
C. 240
D. 300
E. 440
05 Feb 2026, 22:44
Kudos
Bookmarks
| Critical Reasoning Butler: February 2025 | ||
| February 6 | CR 1 | CR 2 |
_____________________
CR 1
Saltation is a sudden and large mutational change taking place over a single generation of a species and depends on a variety of factors related to the habitat and biology of the species. These factors differ in how they affect different species, meaning they should produce a random pattern of mutational change. Yet, careful paleontological study has shown that saltation occurs in a surprisingly consistent pattern, with many species changing at the same time.
Which of the following, if true, forms the best basis for at least a partial explanation of the patterned saltation revealed by the paleontological study?
A. In geologically recent times, for which paleontological study is impossible, human intervention has changed the pattern of saltation.
B. In certain instances, saltation selectively affects organisms with certain unique, species-specific sets of characteristics.
C. Some species experience saltation because of sudden changes in their food chain.
D. Saltation is sometimes a result of wide-ranging environmental disturbances that affect many different species.
E. Widely dispersed species are the least likely to experience saltation.
_____________________
CR 2
As part of an effort to lower operating costs, Daedlus Webhosting Services plans to conduct routine maintenance on its server farm’s cooling system once every fortnight, rather than once every three months – the standard maintenance schedule for such technology. With a more robust maintenance schedule, Daedlus can postpone complete system overhauls, which put the servers out of commission for up to seven months. Moreover, routine maintenance procedures reduce the cooling system’s power consumption by roughly three percent.
The webhosting company’s plan assumes that
A. electricity rates are likely to rise soon and thus, reducing electricity consumption is a high priority
B. cooling system maintenance does not put a server farm out of commission
C. in the long run, fortnightly maintenance of a server farm’s cooling system does not cost much more than a complete system overhaul does
D. Daedlus Webhosting Services has had more severe issues regarding server farm cooling system overhauls and electricity consumption than other webhosting services have
E. conducting routine maintenance on the server farm’s cooling system once a fortnight will give Daedlus Webhosting Services a competitive advantage over other webhosting services
05 Feb 2026, 22:51
Kudos
Bookmarks
| Data Sufficiency Butler: February 2025 | ||
| February 6 | DS 1 | DS 2 |
_________________________
DS 1
A potato harvest has been unevenly stored in sacks, such that 60 percent meet the listed weight and all others are under weight. What is the total number of potato sacks?
(1) The listed weight is 150 pounds, and the total weight of sacks that meet it is 22,500 pounds.
(2) The total number of sacks that don’t meet the listed weight is 100.
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DS 2
The median age of 7 children in group A was 13. The median age of 9 children in group B was 9. Four children – the youngest and the oldest in each group – were exchanged between the groups. What was the new median age of the children in group B?
(1) Before the exchange, the oldest child in group B was 12 years old.
(2) Before the exchange, the youngest child in group A was 8 years old.
