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question : Let S be the set of all positive integers n such that n^2 is a multiple of both 24 and 108 , wich of the following integers are divisors of every integers in S multi choice , select all answers that apply A : 12 B : 24 C : 36 D : 72 i know that answer is A,C --------------------- what i didnt understand is ? at the answer explaination part , we gives at the question that the set of integers will be in form n^2 okay then we can create our conclusion of the set of S on that way , so and said n^2 is multiple of 24 and 108 , i didnt understand what mean of multiple of this two numbers ? ok this is my first ask i really dont want bother you with answer explaination , i just need to know the most simple way to asnwer question like that and explain about multiple of etc ok thanks anyway something ealse confusing me in Data interpertations : if i have a figure show percents , total of female faculty = 200 total of male faculty = 250 the figure gives us as example percent for engineering males 2% and engineering females 12% then the questions as us this way , i need to understand what question - there are 275 students in field of engineering at university X approximately what is the ratio of number of students in engineering to the number of faculty in engineering i need to understand , what is different between faculty mentiones and student of engineering the questions said number of them is 275 thanks , i knew its long answers but hope someone help
hello , today i confess that i had no idea about math in english , you can say i forgot my math since high school and college , but few months ago i studied most of important parts of GRE math , GRE algebra , GRE geometry , etc , and keep review every day i have the old book of GRE ETS official guide , for old exam before august , i was practice my self on few question inside it , but i dont know if revised GRE will be harder or easier , but i decided to buy the GRE revised new book , they said its include hundred of questions about each level in quantitative exam , i hope this help me i hope each one share here success story about prepration materials , or courses , as self study , or some web site can help for free , please GRE takers , give me simple advice because i'm lost , i need question to practice my self thank you