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1610 Comments

  1. From the unknown 1-If two dice are thrown, what is the probability that at least one of them shows a number greater than 3?

    Tue, 18 Aug 2009 23:07:58 -0000

    Hi,

    Check it again…both the s’s gets canceled and we will be left with

    (\frac{1+s}{1-s})^2 = (\frac{s+1}{s-1})^2
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  2. From the unknown Two cards are drawn simultaneously from a pack of cards.What is the probability at least one of them is an ace of hearts?

    Tue, 18 Aug 2009 23:04:04 -0000

    Yes, I agree with Srini….it must be 30% more than Wholesale price and not 30% wholesale price

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  3. From the lesson GATE syllabus FOR COMPUTER SCIENCE ENGG/INFORMATION TECH.

    Tue, 18 Aug 2009 22:59:27 -0000

    I hope Ashok will come up with more lessons and tests regarding the same.

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  4. From the unknown

    3. In the figure find q, s, r, p. respectively. Given line L||m

    !http://asset0.learnhub.com/lesson/pages/13809/photos/28088-small.jpg!

    Tue, 18 Aug 2009 22:57:47 -0000

    Yes, very well pointed out… the order of the answers is pretty important here…

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  5. From the unknown

    1. An angle exceeds 4 times it’s supplement. Find the new angle formed if supplement is 30 degree.

    Tue, 18 Aug 2009 22:56:44 -0000

    I guess a part of the question is missing here.

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  6. From the unknown

    Q.10 A rectangle is such that it can be perfectly cut into smaller squares of a maximum possible side of length 12 units. It is also known that the perimeter of such a rectangle is 384 units.How many distinct rectangles are there which satisfy the criteria given

    Tue, 18 Aug 2009 22:52:21 -0000

    Given that the gcd of the length and width of the rectangle is 12.

    Let length = 12x and width = 12y where x and y are co-primes since gcd of 12x and 12y is 12

    Now we have 2(12x+12y)=384

    i.e. x + y = 16

    Thus sum of two co-primes must be 16

    The possible combinations are (1, 15), (3, 13), (5, 11) and (7, 9)

    Hence, there are four combinations possible for x and y and hence 4 distinct rectangles are possible

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  7. From the unknown

    Q.4 How many positive integer solutions for x, y are there satisfying the equations?

    x + y = p
    x – y = p + 2k + 1

    where p and k are positive integers?

    Tue, 18 Aug 2009 22:47:45 -0000

    Given x and y are positive integers

    Hence, x+y must be greater than x-y

    But given x + y = p and x – y = p + k , where p and k are positive integers

    So, we have p + k > p which is a contradiction to the initial statement that x + y > x- y

    Hence, no solution exists

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  8. From the unknown A number of children are standing in a circle. They are evenly spaced and the 9th child is directly opposite the 20th child. How many children are there altogether?

    Tue, 18 Aug 2009 22:44:32 -0000

    When 2n people are placed around a circle,the difference between the two opposite positions is always equal to n.

    For example, if we place 4 members, 1 is opposite to 3 and 2 is opposite to 4.

    The difference between these positions is 2, which is half the total number.

    Coming to our question, the difference is 11 which is half the total number.

    Hence, 22 must be the total number

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  9. From the unknown

    5. What is the % by which public sector bank’s wage bills are more than the foreign bank’s?

    Tue, 18 Aug 2009 22:39:23 -0000

    Public Banks wage bill = 11136

    Foreign Banks wage bill = 461

    Required Percentage = \frac{11136-461}{461} \times 100 = 2315.61 \%

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  10. From the unknown In the figure to the right, what is the value of x?

    Tue, 18 Aug 2009 22:35:10 -0000

    The image is missing. I hope the author will look into this

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  11. From the unknown *Directions for Questions 7 – 8*: Answer the questions on the basis of the information given below.

    p<>. Indiranagar and Jayanagar are linked by the Outer Ring Road via Rajajinagar and by the 80 feet Road via Gandhinagar which is midway between the two places as shown.

    p<>. Rajeev wants to travel from Indiranagar to Jayanagar and decides to try the 80 feet road. He leaves Indiranagar at 7.00 am and drives at a speed of 70 km/hr up to Gandhinagar. Due to major road repairs from Gandhinagar he is forced to reduce his speed by 40 km/hr and reaches Jayanagar at 12.00 noon. Just then he meets his friend Ravi. Ravi also traveled from Indiranagar but took the Outer Ring Road which was in excellent condition and maintained a speed of 110 km/hr throughout his journey.

    *Q.No. 7:* What is Rajeev’s average speed?

    Tue, 18 Aug 2009 22:30:18 -0000

    Hi,

    The calculation is correct. It is given that his speed is reduced by 40 km/hr and not reduced to 40 km/hr.

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  12. From the discussion abt hobby

    Tue, 18 Aug 2009 22:26:24 -0000

    Need not be….If you are into more than one hobby you can always tell the same in the interview. Reading Literature + Social Service, Puzzle Solving + Guitarist, Swimming + Stock Market Analysis…..

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  13. From the trivia question Math SATs #136- easy: I have a triangle with nodes at (0,0), (0,-4) and (-3,0). Which of the following points would lie within the triangle?

    Tue, 18 Aug 2009 22:23:57 -0000

    It is evident that the triangle is in the third quadrant.

    The only point in the third quadrant among the choices given is (-1, -2) and hence it must be the answer

  14. From the trivia question Math SATs #244: I'm baking cookies. Each cookie takes 6 minutes to decorate, plus it take 20 minutes to bake them, and I can bake 10 cookies at a time. How much time it will take to bake C cookies if C is a multiple of 10?

    Tue, 18 Aug 2009 22:19:37 -0000

    Given that he can bake 10 cookies in 20 minutes.

    So to bake C cookies, the time take is (C/10)20 minutes.

    Also, to decorate each cookie the time taken is 6 minutes.

    So, the time taken to decorate C cookies is 6C minutes.

    Hence the total time = 6C + 20(C/10) minutes

  15. From the trivia question Math SATs #192- hard: p is any positive integer. Which of the following is an even integer that factors into 2 and an odd integer?

    Tue, 18 Aug 2009 22:13:35 -0000

    4p+2 = 2(2p+1)

    Now, irrespective of whether p is even or odd, 2p+1 is always odd. Hence one of the factors of 4p+2 is 2 and the other is odd integer

  16. From the lesson Online CAT 2009: Punch Of the Week (05-Aug-09)

    Mon, 17 Aug 2009 15:57:23 -0000

    Hi,

    Please give us the link to the test and we will try to provide the solutions.

    Regards

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  17. From the discussion books

    Mon, 17 Aug 2009 15:56:14 -0000

    Yes, there are quite good number of errors in the answers section of this book.

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  18. From the question TOEFL books

    Mon, 17 Aug 2009 15:53:42 -0000

    Yes, this is the ideal way…

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  19. From the discussion preparing for cat 2011

    Mon, 17 Aug 2009 15:52:52 -0000

    Please post your queries in the relevant communities. If you are taking about CAT/GMAT please see that the query goes into one of these communities so that the experts can answer them as quickly as they can.

    All the best

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  20. From the discussion gmat work exp??

    Mon, 17 Aug 2009 15:51:49 -0000

    Hi,

    Assuming that you will have 3 yrs of work experience by Aug 2010, the work experience is sufficient to apply to the decent B-Schools abroad but at the same time this is definitely less than the average work experience of these B-Schools. So you need to show your competence by scoring well in GMAT, your admission essays and by demonstrating the uniqueness of your work experience.

    So start preparing for the exam and give your best

    All the best

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