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    Zabeer

    @zabeer

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    Topics created by zabeer

    • Hate using Quadratic Formula ? This could help!
      Quant Primer • theory of equations • • zabeer  

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    • Quant Boosters - Hemant Yadav - Set 4
      Quant - Boosters • quant - mixed bag question bank • • zabeer  

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      Q30) There are 10 consecutive positive integers written on a blackboard. One number is erased. The sum of remaining nine integers is 2011. Which number was erased?

    • Quant Boosters - Hemant Yadav - Set 3
      Quant - Boosters • quant - mixed bag question bank • • zabeer  

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      Let students be x (X/2)-1 /x >=0.47 ( for x even)(X/2 -0.5)/x >=0.47 (x being odd case) It satisfies at x=17( min)

    • Quant Boosters - Hemant Yadav - Set 2
      Quant - Boosters • • zabeer  

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      Q30) How many 7 digit numbers abcdefg are there such that a > b ≥ c > d ≥ e > f ≥ g ? [OA : 13C7]

    • Quant Boosters - Hemant Yadav - Set 1
      Quant - Boosters • quant - mixed bag question bank • • zabeer  

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      1/x + 1/y = 1/n=> xy = nx + ny=> (x - n)(y - n) = n² Now, n² must have 5 factors to get 5 ordered pairs=> n must be of form p², where p is prime number Hence all primes less than 20

    • Quant Boosters - Quant Mixed Bag - Set 1
      Quant - Boosters • quant - mixed bag • • zabeer  

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      2xy - 3x - y = 4 2x(y - 3/2) - y = 4 add 3/2on both sides 2x(y - 3/2) - y + 3/2 = 4 + 3/2 2x(y - 3/2) - 1(y - 3/2) = 11/2 (2x - 1)(y - 3/2) = 11/2 (2x - 1)(2y - 3) = 11 11 = 1 * 11 Case-1) 2x - 1 = 1 => x=1 2y - 3 = 11, y = 7 Case-2) 2x - 1 = 11 x = 6 2y - 3 = 1, y = 2 so 7/9

    • Area Of The Region Bounded By The Curves - Concepts & Shortcuts
      Quant Primer • • zabeer  

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    • Finding Number of Positive & Non-Negative Integral Solutions For a + b + c + ... = N & Its Applications
      Quant Primer • theory of equations permutation & combination • • zabeer  

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    • Quant Boosters by Shubham Ranka, IIM Calcutta
      Quant - Boosters • quant - mixed bag • • zabeer  

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      p = prob (overnight born = boy| Next day chosen = boy) = prob (overnight born = boy AND Next day chosen = boy) / prob (Next day chosen = boy) = .5 * 4/T / (.5*4/T + .5 * 3/T) = 2/3.5 = 4/7 ~ .57

    • Quant Boosters - Sagar Gupta - Set 3
      Quant - Boosters • quant - mixed bag • • zabeer  

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      14 to 28 : 15 students 30, 31, 32 and 1 to 12 : 15 students so total 32

    • Quant Boosters - Sagar Gupta - Set 2
      Quant - Boosters • quant - mixed bag • • zabeer  

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      x = 3 - 2 root 2 1/x = 3 + 2 root 2 x^6 + (1/x)^6 => 2 [ 3^6 + 6C2 * 3^4 * ( 2 root 2 )^2 + 6C4 * 3^2 * ( 2 root 2 )^4 + ( 2 root 2 )^6 ] 2 [ 729 + 15 * 81 * 8 + 15 * 9 * 64 + 512 ] = 39202

    • Quant Boosters - Sagar Gupta - Set 1
      Quant - Boosters • • zabeer  

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      5x - 3y = 140 x=25 , x=22 , x=19 , x=16 , x=13 , x=10 , x=7 , x=4 , x=1 9 solutions

    • Why your CAT preparation plans are failing ?
      Test Preparation Strategy • • zabeer  

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    • Do you need a mentor while preparing for CAT ? YES and here's why!
      Test Preparation Strategy • • zabeer  

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      Any leads to mentors? I couldn't get it online.

    • Divide & Conquer - Divisibility Rules
      Quant Primer • divisibility rules • • zabeer  

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    • Question Bank - Number of Integral/Positive/Non-Negative Solutions - Set 2
      Quant - Boosters • question bank theory of equations • • zabeer  

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      @vikas_saini can u plz explain 2nd and 3rd+4th step again. 2nd step:what is -1-what are we reducing in it 3rd step: 3rd+4th step doesnt giv value in 2nd step. what are we missing in it. 3rd+4th= 2T-2

    • Question Bank - Number of Integral/Positive/Non-Negative Solutions - Set 1
      Quant - Boosters • question bank theory of equations • • zabeer  

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      x^2 + y^2 - xy = x + y (x - y)^2 + (x -1)^2 + (y -1)^2 = 2 (0,0) (0,1) (1,0) (2,2) (1,2) (2,1) 6 integral solutions 3 positive integer solutions [credits : @Raman_Sharma]

    • Simple Equations Based Problems From Previous CAT Papers
      Quant Primer • theory of equations • • zabeer  

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    • Confessions of a serial GD/PI flopper - Part 1 (Statement Of Purpose)
      Group Discussion, Personal Interview & Written Ability Test • • zabeer  

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    • Confessions of a serial GD/PI flopper - Part 2 (Group Discussion / Written Ability Test)
      Group Discussion, Personal Interview & Written Ability Test • • zabeer  

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    • A quick-reference list of commonly confused words
      Vocabulary • • zabeer  

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    • Scribblings of a grammatically challenged soul - Part 5
      English Usage • • zabeer  

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    • How to approach Reading Comprehension
      Reading Comprehension • • zabeer  

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    • Scribblings of a grammatically challenged soul - Part 4
      English Usage • • zabeer  

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    • Scribblings of a grammatically challenged soul - Part 3
      English Usage • • zabeer  

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    • Trick of seeing PARAJUMBLES in ELSUMJBRPAA
      Critical Reasoning • parajumble • • zabeer  

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    • Scribblings of a grammatically challenged soul - Part 1
      English Usage • • zabeer  

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    • Scribblings of a grammatically challenged soul - Part 2
      English Usage • • zabeer  

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    • Basics of Logical Reasoning
      Logical Reasoning • • zabeer  

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    • Basics of Data Sufficiency
      Data Sufficiency • • zabeer  

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    • Basics of Data Interpretation
      Data Interpretation • • zabeer  

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    • Data Representation Models
      Data Interpretation • • zabeer  

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    • Tackling Quant & DI section of CAT
      Test Preparation Strategy • • zabeer  

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    • Approximation Techniques for speed calculations
      Quant Primer • mathemagics • • zabeer  

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    • Three Concepts In Percentage To Tackle Quant
      Quant Primer • percentage • • zabeer  

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    • CAT Preparation : Worried About Quant ? Lets Tame Some Monster Numbers
      Quant Primer • divisibility rules • • zabeer  

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    • Set theory - Maxima / Minima Using Line Method
      Quant Primer • set theory • • zabeer  

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    • Remainder Theorem for CAT
      Quant Primer • remainder theorm • • zabeer  

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    • Factorials
      Quant Primer • factorial • • zabeer  

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    • HCF & LCM fundas
      Quant Primer • hcf lcm • • zabeer  

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    • Factors of a Number
      Quant Primer • factor theorem • • zabeer  

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