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  1. From the trivia question An employer reduces the umber of his employees in the ratio 12:7 and increases their wages in the ratio 14:15. state whether his bill of total wages increases or decreases in the what ratio

    Tue, 11 Aug 2009 17:30:10 -0000

    Number of employee becomes 7/12 times Wages becomes 15/14 times So total wages become 7/12 * 15/14 = 5/8 times

  2. From the trivia question Mean Value Theorem. Let f be a function which is differentiable on the closed interval [a, b]. Then there exists a point c in (a, b) such that f'(c)=

    Tue, 11 Aug 2009 17:21:43 -0000

    Idealy it should be [f(b)-f(a)]/(a-b)

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    1. Srashti saidWed, 28 Oct 2009 16:01:06 -0000

      plz explain d answer as m bad with functions!!!

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  3. From the trivia question

    At Supersonic Corporation, the time required for a machine to complete a job is determined by the formula:
    t=\sqrt {w}+\sqrt {w-1}
    where w = the weight of the machine in pounds and t = the hours required to complete the job. If machine A weighs 8 pounds, and machine B weighs 7 pounds, how many hours will it take the two machines to finish one job if they work together?

    Mon, 08 Sep 2008 17:36:03 -0000

    Pl Explain

  4. From the trivia question SAT Grammar #81 -- Identify the error in the following sentence:
    Alberto told his child his plan for their future: each one of them will attend university for engineering or computer science, and graduate with honours. No error

    Mon, 08 Sep 2008 17:30:05 -0000

    “Each one of them” if there is single child.

  5. From the trivia question

    Given that n is an integer; is n — 1 divisible by 3?

    (1) n^2+n is not divisible by 3
    (2) 3n+5 \underline > k+8 , where k is a positive multiple of 3

    Sat, 30 Aug 2008 16:08:22 -0000

    How second statement is sufficient ?

    3(n-1)>=k does not mean (n-1) is divisible by 3.

  6. From the trivia question Math SATs #195- hard: If 0< a <6 and -1< b <5, what's the complete range of ab?

    Thu, 28 Aug 2008 08:30:47 -0000

    All are right except -1<ab<0 And it was not stated what we had to do in this question.

  7. From the trivia question 110. Find the error in the sentence: Even though he thinks he is great at volleyball, I am a much better server than him.

    Thu, 28 Aug 2008 07:48:48 -0000

    Pl explain

  8. From the trivia question 65. Sentence Correction: These questions will test your ability to find grammar and usage errors. There will either be one error or no error at all in each sentence. The error (if any) will be underlined and the corresponding lettered answer (A,B or C) will be placed beside the possible answers. If the sentence contains no error choose D.

    Since(A) the return of skinny jeans, mob(B) of people have been(C) running to stores to pick up the latest fashion trend. No Error(D)

    Tue, 26 Aug 2008 12:44:30 -0000

    Why is it wrong ?

  9. From the trivia question Math SATs #175- hard: Line MN is perpendicular to line NP. Also, line PQ and line MN bisect each other (cut each other in half) at point T. If the length of MN is 12 and the length of PQ is 20, what's the length of PN?

    Tue, 26 Aug 2008 12:39:23 -0000

    The correct answer may be: - PN = sqrt (100+36) =12 approx

  10. From the trivia question Math SATs #178- hard: The distance from (1,2) to (4,x) is k. If k=(|-2|)+|(9^(1/2))|, which of these can be a value for x?

    Tue, 26 Aug 2008 12:37:03 -0000

    x=-2 is also possible

  11. From the trivia question Which of these is NOT a resource found right here in LearnHub designed to help you prepare for your SATs?

    Tue, 26 Aug 2008 12:23:41 -0000

    Pl refrain from posting such general questions

  12. From the trivia question Math SATs #123- medium: Which of these is equivalent to \frac{4}{3x} * 6x ^2 * \frac{x}{2}?

    Tue, 26 Aug 2008 11:49:20 -0000

    The correct answer must be 4(x^4)

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    1. jalaj saidFri, 23 Jan 2009 11:07:08 -0000

      no dude its correct …....

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  13. From the trivia question 69. Sentence Correction: These questions will test your ability to find grammar and usage errors. There will either be one error or no error at all in each sentence. The error (if any) will be underlined and the corresponding lettered answer (A,B or C) will be placed beside the possible answers. If the sentence contains no error choose D.

    Lise Van Gutten composed her last song and at age eighty-seven years old .

    Tue, 26 Aug 2008 11:39:40 -0000

    “and when” seems odd

    Why it can not be Lise Van Gutten composed her last song and at the time when she was eighty-seven ?

  14. From the trivia question Math SATs #226: My box has dimensions 10x5x5. If I want to fit in this box smaller boxes of size 2x2x1, how many boxes would fit?

    Tue, 26 Aug 2008 11:16:37 -0000

    Pl explain

  15. From the trivia question SAT Grammar #90 -- Identify the error in the sentence below:
    Amidst the chaos of the first day of lectures, she was able to make a mental note of the location of all snack vending machine on campus. No error

    Tue, 26 Aug 2008 11:09:48 -0000

    Why ? Pl explain

  16. From the trivia question Math SATs #202: Find the 6th term of the geometric sequence starting at 5 and increasing by a factor of -1 each time.

    Tue, 26 Aug 2008 11:05:50 -0000

    5 -5 5 -5 5 -5

    -5 is the sixth term of the geometric sequence

  17. From the trivia question Math SAT-Basic Algebra: If: \frac{32a}{9}=8a ^2, Then: a=?

    Tue, 26 Aug 2008 07:02:08 -0000

    Good question !

  18. From the trivia question which chocolates are the most delicious in the world!

    Tue, 26 Aug 2008 06:32:48 -0000

    This question must not be posted here.

  19. From the trivia question Math SATs #173- hard: Which of the following are false?
    I. The sum of any two consecutive integers is odd
    II. The sum of every 3 consecutive integers is always even
    III. The sum of every 3 consecutive integers is always a multiple of 3

    Tue, 26 Aug 2008 06:11:21 -0000

    Why not I only ? k+k+1=2k+1 which is always odd

  20. From the trivia question Math SATs #102- easy: My school has an average of 29 student in every geography class. The are 5 classes in our school. Also, the average score on the geography exam was 78. How many students take geography in my school?

    Tue, 26 Aug 2008 06:04:40 -0000

    Pl explain