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[CSAT] - Quantitative Aptitude - Answer Solving Thread

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Comments

  • No intention to spam your discussion thread...

    But iss video se at least Time, Speed, Distance ke basics toh sahi ho jaayenge...

    There are other videos on basics of CSAT as well.... like Vedic Maths for Squares and all.....

    Otherwise, let me know if I could be of any help...

  • Great to see a CSAT Paper-2 thread becoming an announcement thread.
  • Find the odd one
    2744, 2197, 1728, 1300, 1000
  • Find the odd one
    2744, 2197, 1728, 1300, 1000
    2197,that's an odd no. & rest of them are even
  • Find the odd one
    2744, 2197, 1728, 1300, 1000
    2197,that's an odd no. & rest of them are even
    The odd one is 1300 because the others are cubes of 14, 13, 12 and 10 respectively.
  • @stardust you are correct bro but I cannot say that @vayam is wrong. This is the second time my question got 2 acceptable answers. What will UPSC do in such cases?
  • edited December 2013
    @stardust you are correct bro but I cannot say that @vayam is wrong. This is the second time my question got 2 acceptable answers. What will UPSC do in such cases?
    In the answer key released by upsc for the 2012 prelims, only the ethics questions had 2 correct answers. All the logical/quant question had only one correct answer.

    In your question, the correct answer will definitely not be based on whether a number is odd or even because even school exams will not have such easy answers.

    If somehow the question has two legitimate correct answers, then UPSC will probably not even ask us that question. All CSAT questions asked in the prelims have only one clear answer.
  • @stardust you are correct bro but I cannot say that @vayam is wrong. This is the second time my question got 2 acceptable answers. What will UPSC do in such cases?
    In the answer key released by upsc for the 2012 prelims, only the ethics questions had 2 correct answers. All the logical/quant question had only one correct answer.

    In your question, the correct answer will definitely not be based on whether a number is odd or even because even school exams will not have such easy answers.

    If somehow the question has two legitimate correct answers, then UPSC will probably not even ask us that question. All CSAT questions asked in the prelims have only one clear answer.
    @Stardust the quantitative ability questions of CSP and more specifically CSP-2013 have been very simple. So, I don't think the easiness of a question rules out the probability of its appearing in the actual examination.

    However, I do agree with you that a question will multiple answers has a rare chance of appearing in the exam.
  • Let me try once more
    Complete the series
    2, 12, 36, 80, 150, ?? , 392
  • edited December 2013
    (1^2)*2, (2^2)*3,(3^2)*4,(4^2)*5,(5^2)*6, (6^2)*7= 252 , (7^2)*8
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