Quant - Boosters

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  Quant Boosters - Kamal Lohia - Set 8
  quant - mixed bag question bank • • kamal_lohia

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  @kamal_lohia D)40% first you will find the increase in percentage which will be 22500. after 4 weeks without food ,the drop was 60% so the final count will be 9000 :- (15000-9000/15000)*100=40%
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  Quant Boosters - Rajesh Balasubramanian - Set 3
  • rajesh_balasubramanian

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  @rajesh_balasubramanian Sir, if we take x=0 and y = 1050, then HCF(0,1050) = 1050. Or am I missing something?
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  CAT Question Bank - Maxima & Minima
  question bank maxima & minima • • Rowdy Rathore

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  @rowdy-rathore can u plz solve this?
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  CAT Question Bank - Time, Speed & Distance
  question bank time speed & distance • • Rowdy Rathore

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  @rowdy-rathore 8km
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  Quant Boosters - Swetabh Kumar - Set 1
  quant - mixed bag • • swetabh_kumar

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  @swetabh_kumar x = 3/2 minimum = 1
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  Question Bank - Equations - Set 1
  question bank theory of equations • • anurag_chauhan

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  @anurag_chauhan 10
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  CAT Question Bank - Time & Work
  • Rowdy Rathore

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  @rowdy-rathore 2.83 days
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  Quant Boosters - Geometry - Raman Sharma - Set 1
  question bank • • Raman_Sharma

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  @raman_sharma LET the remaining areas in cyclic order from left be e,a, d, b.and the shaded area be c. a+b+c =1/2(a+b+c+d+e+97)a+b+c = d+e+97ord+e+97 = a+b+c -------(1) similarly, e+c+d = 1/2(a+b+c+d+e+97)=>e+c+d= a+b+97 ------(2) subtract (2) from (1) c-97 = 97-c=>c=97
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  Quant Boosters - Kamal Lohia - Set 9
  • kamal_lohia

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  @zabeer sir.. Why have we considered numbers like 7 and such to proceed further? Could you explain the solution a bit more... ?
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  Quant Boosters - Hemant Yadav - Set 3
  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)
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  Quant Boosters - Kamal Lohia - Set 7
  quant - mixed bag question bank • • kamal_lohia

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  Q30) Given f(x) = x - 1/x, solve the equation f(f(x)) = x.
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  Quant Boosters - Hemant Yadav - Set 4
  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?
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  Quant Boosters - Hemant Yadav - Set 2
  • 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]
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  Quant Boosters - Swetabh Kumar - Set 3
  quant - mixed bag • • swetabh_kumar

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  We can do it another way too: Put x= y,F(2x) = f(x)^2Put y=2xF(3x)= f(x)^3=>f(nx)=f(x)^n F(-8)=F(-2×4)=f(4)^-2=1/9
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  Quant Boosters - Maneesh - Set 4
  quant - mixed bag • • maneesh_p

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  Here nf(x)= f(x^n) F(343sqrt3)= 3f(7)+1/2f(3) F(7) and f(3) can be found using given values.
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  Quant Boosters - Rajesh Balasubramanian - Set 4
  question bank time speed & distance • • rajesh_balasubramanian

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  In every meet their combined distance travelled is 100 m. Let there be "a" meets. =>[(100a) * 5/(5+3)]=300Which gives a=4.8 Though it cant be decimal. But What is wrong with this approach???? As there is a similar question in gyan room-arithmetic shortcuts...and i hv applied the same approach here..
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  Quant Boosters - Hemant Yadav - Set 1
  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
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  Quant Boosters - Rajesh Balasubramanian - Set 5
  question bank theory of equations • • rajesh_balasubramanian

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  The roots are a and b: a + b = p and ab = 12 (a + b)^2 = p^2 (a - b)^2 = (a + b)^2 - 4ab => (a - b)^2 = p^2 - 12 * 4 = p^2 - 48 If |a - b| ≥ 12 { Difference between the roots is at least 12} then, (a - b)^2 ≥ 144 p^2 - 48 ≥ 144 p^2 ≥ 192 P ≥ 8√3 or P ≤ -8√3