800Bob

The answer is not 27. It's 81. But you have not transcribed the answer choices correctly. They actually look like this: [81] [54] [36] [27] [18] Of these choices, only [27] is equal to 81.

cancelled

From statement 1 we know that a = 2b. If a = b = 0, the answer to the question is yes. In all other cases the answer to the question is no. Insufficient. From statement 2 we know that a = b(log3/log2). If a = b = 0, the answer to the question is yes. In all other cases the answer to the question is no. Insufficient. The only values of a and b that satisfy both statements are a = b = 0, and so from the two statements together we can say the answer to the question is yes. The correct response is C. If the question had specified that a and b are integers, statement 2 alone would have be sufficient.

"However much voters may agree..." is perfectly idiomatic and makes perfect sense here. It means "to whatever extent voters agree" or "no matter how much voters agree". Imagine asking this question: "How much do voters agree? Do they agree a lot or a little?" The sentence starts from the position that it doesn't matter how much voters agree: "However much voters agree... it is difficult to find support..."

Deleted by request of the LSAC.

But would you say: "More work gets done when awake than when asleep"?

E may be parallel, but it makes no sense. It says that the hormone is secreted in higher concentrations when asleep than when awake, meaning that sometimes the hormone is asleep and sometimes it is awake. D not only is parallel -- during + noun (sleep) compared with during + noun (waking hours) -- but also makes sense.

Until about 50 years ago, media and data were used only as countable plural nouns. Traditionalists still treat them exclusively as plurals, and GMAT writers are rather old-fashioned. Nevertheless, because even GMAT writers recognize that today many educated people use media as an uncountable singular noun when referring to the agencies of mass communication, you cannot eliminate an answer choice just because it says "the media has..." In this example, however, there is no doubt that media is plural because of the pronoun they.

This question is in OG12. The credited response is C.

This question, discussed frequently with no consensus, appears in OG12. The credited response is E.

This question, discussed many times with no consensus, appears in OG12. The credited response is C.

The question actually reads as follows: If n is a positive integer, what is the value of the hundreds digit of 30^n ? (1) 30^n > 1,000 (2) n is a multiple of 3. The correct response is .

In forming the possessive, sometimes you have the option of adding 's or just the apostrophe (without s). Here are the rules: For most singular nouns, add 's: the boy's house, the company's CEO, the state's population For singular nouns that end with -s, you may add either 's or just the apostrophe. Both are acceptable: James's house or James' house, the business's CEO or the business' CEO, Texas's population or Texas' population. For plural nouns that end in -s, add just the apostrophe: the two boys' houses, the two businesses' CEOs, the two states' populations For plural nouns that do not end in -s, add 's: the two children's houses, the two alumni's wives I have a system that makes the issue very easy. Forget about singular and plural. Just follow these two simple rules and you will never make a mistake: 1. If the noun ends with -s, add just the apostrophe. 2. In all other cases, add 's.

You are very kind. I'm sorry I cannot contribute more frequently, but my GMAT and SAT students here in Milan are my first priority.

You need a subject and verb in the first part: So rich is he, so handsome, that all women want to marry him.

There is no such thing as the “best amongst the worst” in GMAT Sentence Correction. There is always a choice that is clear and correct. It may not be the only way to write the sentence, it may not be the way you would write the sentence, but the correct answer will be grammatical and unambiguous. There is nothing ungrammatical, ambiguous, or awkward about the following sentence: So dogged were Frances Perkins’ investigations of the garment industry, so persistent her lobbying for wage and hour reform, that Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker. The part of the sentence between the first two commas (“so persistent her lobbying for wage and hour reform”) is an absolute phrase, an elaboration on the words “so dogged Frances Perkins’ investigation of the garment industry”, placed in apposition. Here is the same information expressed first more straightforwardly, then step by step transformed into choice E: Frances Perkins’ investigations of the garment industry were so dogged, and her lobbying for wage and hour reform were so persistent, that Alfred E. Smith and Franklin D. Roosevelt... Frances Perkins’ investigations of the garment industry were so dogged, her lobbying for wage and hour reform so persistent, that Alfred E. Smith and Franklin D. Roosevelt... So dogged were Frances Perkins’ investigations of the garment industry, so persistent her lobbying for wage and hour reform, that Alfred E. Smith and Franklin D. Roosevelt...

In fact, it is more logical to say that there are two identical roots. For example, saying so enables us to say that for every equation of the form ax^2 + bx + c = 0: The sum of the roots is -b/a. The product of the roots is c/a. These two statements hold for every quadratic equation, whether the roots are real or complex, different or identical. If, however, we decide that an equation such as 4x^2 + 4x + 1 = 0 has just one root, then we have to say that such an equation is an exception to these two general rules.

This question is bogus. We can answer the question (as written) without using either statement. Strictly speaking, every quadratic equation has two roots. Sometimes the two roots are identical (when the discriminant b^2 - 4ac = 0), and sometimes the two roots are nonreal (when the discriminant b^2 - 4ac I imagine that the writer of this question was trying to ask: "The equation x^2 + ax + b = 0 has how many distinct real solutions?"

The language is changing. The word "whom" is almost never used today. Don't worry about it. GMAT Sentence Correction never tests you on the difference between "who" and "whom".

No one loves you except me. "Except" is a preposition and so much be followed by the object pronoun. Please lie down. Lay/laid/laid is a transitive verb, used when there is a direct object. Lie/lay/lain in the intransitive verb. Whom do you love? For the direct object of the transitive verb "love" we need the object pronoun. Neither of these cars is worth the money. The pronoun "neither" is singular. Your words seem to imply that Jack is a liar. The speaker/writer "implies". The listener/reader "infers".

There is no ambiguity in this question. "Consecutive" does not mean equally spaced. It means one after another, without skipping any. "Consecutive even integers" means one even integer after another without skipping any, such as: 6, 8, 10, 12, 14, 16. "Consecutive prime numbers" means one prime number after another, without skipping any, such as: 5, 7, 11, 13, 17, 19. "Consecutive powers of 2" means one power of 2 after another, without skipping any, such as: 16, 32, 64, 128, 256, 512. So "consecutive integers" means one integer after another, without skipping any. You can't call 2, 4, 6, 8, 10, 12 a set of consecutive integers, because you are skipping some.

I say D. See http://www.www.urch.com/forums/gmat-sentence-correction/39415-1000sc.html. See also OG11, SC62.

A and B are both wrong.

(5^12) - 1 = (5^6 - 1)(5^6 + 1) = (5^3 - 1)(5^3 + 1)(5^6 + 1) = 124*126*(5^6 + 1) Since 126 is a multiple of 7, we know that 124*126*(5^6 + 1) will be a multiple of 7. The remainder is 0.

That's right. The answer is C. There is no reason to forbid can or may in the result clause. If fact, the future of can is can, and the future of may is may: I can swim. (present) I can do it tomorrow. (future) You may enter. (present) It may rain tomorrow. (future) You cannot say "will can" or "will may". So all of the following sentences, which use can or may in the result clauses, are correct: Many writers of modern English have acquired careless habits that damage the clarity of their prose, but they can break these habits if they are willing to take the necessary trouble. With diamonds, as with all gems, you should ask for a written description of your purchase; the description may prove useful later if you have reason to believe the jeweler misled you. The irritation of the stomach caused by aspirin can be avoided if the aspirin tablet is given a coating that will not dissolve until the tablet reaches the intestine. A consumer may not think of household cleaning products as hazardous substances, but many of them can be harmful to health, especially if they are used improperly. Unlike the premiums for auto insurance, the premiums for personal property coverage are not affected by the frequency of claims, but if the insurance company is able to prove excessive loss due to owner negligence, it may decline to renew the policy.