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Problem Solving Butler: January 2025
January 16PS 1PS 2

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PS 1

p, m, and n are positive integers greater than 1 such that p = m x n and m and n do not have any common prime factors. If p has 25 factors, m has r factors, and n has s factors, what is the value of (r + s)?

A. 4
B. 8
C. 10
D. 16
E. 25

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If (10 – 6a)^5 = –1, a = ?

A. –3 / 2
B. –11 / 6
C. 3 / 2
D. 5 / 3
E. 11 / 6
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Critical Reasoning Butler: January 2025
January 16CR 1CR 2


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CR 1

Agriculturalists have noted that soil with an abnormally low proportion of nutrients such as magnesium and potassium is usually acidic, which severely hampers crop growth. Thus, agriculturalists recommend treating soil with nutrient-heavy fertilizers such as lime, wood ash, and Epsom salts to prevent soil acidity.

Which of the following, if true, most strongly suggests that it would not be advisable to follow the agriculturists’ recommendation?

A. Soil acidity alters the chemistry of soil in a way that makes it difficult for it to absorb nutrients such as magnesium and potassium.
B. Soil acidity can resolve itself without intervention, sometimes.
C. Lime contains elements that are not easily absorbed by many types of soil.
D. Epsom salts are not easily available in all regions.
E. Low magnesium and potassium levels in soil can in some cases be fixed through composting.

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CR 2

A carbon credit is a permit that allows a company to produce a certain amount of greenhouse gases. The government issues the credits to companies who invest in environmental initiatives. After reaching their limit for greenhouse gas production, larger companies sell their remaining credits to smaller companies for less than the smaller companies would need to invest in environmental initiatives to earn the credits themselves. This practice has resulted in a drop in investment in environmental initiatives.

To discourage the purchase and sale of carbon credits, it would be best if the government restricted

A. how many credits a company can earn per year
B. the industries that can use the credits
C. in which months of the year the additional credits can be used
D. how much time may elapse between the issuing and use of the credits
E. the use of the credits to the companies that earned them and the companies’ subsidiaries
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Data Sufficiency Butler: January 2025
January 16DS 1DS 2

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DS 1

Solutions A, B, and C are mixed. What is the ratio of alcohol and water in the resultant solution?

(1) A contains 20% alcohol, B contains 20% alcohol, and C contains 80% water.
(2) All solutions contain only water and alcohol.
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A helium balloon begins to slowly lose helium. Did the balloon contain more than 5 gallons of helium when it was first inflated? (Note: 1 gallon = 128 ounces)

(1) The helium leaked at a constant rate of .32 ounces per minute.
(2) The balloon was fully deflated within 48 hours of its inflation.
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does anybody know how to view the source of the question?
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Hi DavidDug Source of the questions are most of the timed tagged, next to the question level. However,sometimes the sources are tagged as others, for those if we wish, you can tag the user who has posted the question.


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does anybody know how to view the source of the question?
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January 16th Quant Question of the Day



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January 16th Verbal Question of the Day



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https://gmatclub.com/forum/the-diagram-shows-the-proposed-seating-assignments-at-a-meeting-of-stu-430464.html
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Why cant my answers be 1) Replace Miranda with Kitty and Fiona with Lily? That way I would still have one member of the each school sit next to the each other
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January 17th DI Question of the Day



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January 17th Verbal Question of the Day



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Test your GMAT skills in Real Test Conditions - Join our Live GMAT Quiz and see how you stack up against other test takers https://www.youtube.com/watch?v=4nP8piox8xs
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January 18th Quant Question of the Day



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in-a-race-an-overtake-between-two-participants-refers-to-the-event-453252.html

Hey all is the answer B or D? I had this question on my official mock and on there it says D but according to this post it should be B
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goonjoon
Hey all is the answer B or D? I had this question on my official mock and on there it says D but according to this post it should be B
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You mean the official mock, right? I don’t know if the real exam provides answer key.
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