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Official Quant thread for CAT 2013

Number Systems, Progressions

Permutations and Combinations, Probability

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Official Quant thread for CAT 2013

3m
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Official Quant thread for CAT 2013
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amansahota posted 48 mins ago The remainder when 2^2+22^2+222^2+….+(222…49 twos)^2 is divided by 9? neutral
Can any one give the detailed explanation of the solution for this Number problem

13m
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Can any one give the detailed explanation of the solution for this Number problem
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vin. posted 13 mins ago Ram wrote first 50 natural numbers on a blackboard. Then he erased two numbers say p and q, and replaced them by a single number N. He performed this operation repeatedly until a single number was left. For all odd values of n, in the n th operation, he chose N to be p+q+1 and for all even values of n, he chose N to be p+q-1. Find the final number which remained.
Number Systems, Progressions

26m
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Number Systems, Progressions
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AkshatJain posted 20 hours ago Equilateral triangle ABC has a circumcircle Γ with center O and circumradius 10. Another circle Γ1 is drawn inside Γsuch that it is tangential to radii OC and OB and circle Γ. The radius of Γ1 can be expressed in the form ab√−c, where a,b and c are positive integers, and b is not divisible by the square of any prime. What is the value of a+b+c?
Mensuration, Geometry & Co-ordinate Geometry

2h
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Mensuration, Geometry & Co-ordinate Geometry
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peg posted 14 hours ago In a quadrilateral PQRS, a circle with center M is inscribed that touches all the four edges. SP and RQ are extended to meet at O. And another circle with center N is inscribed in triangle OPQ that touches all the three of its sides. Given that angle MPQ = 30 degree, find angle MNQ in degrees.
Official LR-DI Thread for CAT 2013

3h
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Official LR-DI Thread for CAT 2013
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3h
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softie posted 2 days ago @vjinrj Statements: Some cups are broken. All cups are strong. Conclusions: I. All broken cups are strong. II. All strong (entities) are broken. a If only conclusion I follows b If only conclusion II follows c If both the conclusions I and II follow d If either conclusion I or II follows e If neither conclusion I nor II follows ANS : According to TIME (e) According to CL (a) Which is right? it should be e only. because the entities are not distributed. so nither 1 nor 2 follows
Quant by Arun Sharma

3h
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Quant by Arun Sharma
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ramirez posted 6 hours ago Q) An alloy contains copper and manganesse in the ratio 8:5 and another alloy contains copper and tungsten in the ratio 5:3. if equal weights of two alloys are melted together to form a third alloy. then what is the weight of manganese per kg in the new alloy? ans) 5/26
Permutations and Combinations, Probability

5h
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Permutations and Combinations, Probability
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omen25 posted 5 hours ago In how many ways can you put 7 letters into their respective envelopes such that exactly 3 go into the right envelope? Pls post the explanation
Algebra, Quadratic Equations, Inequalities, Functions

8h
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Algebra, Quadratic Equations, Inequalities, Functions
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peg posted 14 hours ago Find the minimum value of |x - 5| + |2 - x| - |3 + x| Please tell me the easiest way to solve such questions. grin
Time Speed and Distance, Work, Alligations & Mixtures

20h
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Time Speed and Distance, Work, Alligations & Mixtures
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20h
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aksh000 posted 4 days ago @Homer1ram and shyam run a race of 2000m.ram gives shyam a start of 200m and beats him by 30s.then ram gives shyam a start of 3 mins and is beaten by 1000m.find the time in which ram and shyam can run race seperately. 1) 8,10 2) 4,5 3) 5,9 4) 6,9 Skip ×plz give me solution.............
Books On DI

1d
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Books On DI
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1d
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coolrishika269 posted yesterday hey arun sharma DI is pretty gud grin
Ravi Handa Articles

2d
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Ravi Handa Articles
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2d
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ravihanda posted 4 days ago New post - CAT Logical Reasoning: Knights, Knaves and Spies telling truth and lies
Number System - Questions & Discussions

2d
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Number System - Questions & Discussions
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2d
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pablo1989 posted 2 days ago @vergil15^23+23^23/19 what is remainder?? wit exlaination 1) a 2) b Skip ×the answer is zero cause a^n +b^n is divisible by a+b when n= odd
Set Theory, Logarithms, Ratio Proportion & Variation

2d
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Set Theory, Logarithms, Ratio Proportion & Variation
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2d
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nrmd posted 4 weeks ago An empty fuel tank of a car was filled with A type petrol.When the tank was half-empty ,it was filled with B type petrol. Again when the tank was half-empty , it was filled with A type petrol . When the tank was half-empty again, it was filled with B type petrol.What is the percentage of A type petrol at present in the tank?
Averages, Percentages, Profit Loss and Interest

3d
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Averages, Percentages, Profit Loss and Interest
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3d
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Empathy posted 3 days ago Rohan and five of his friends contributed equal money and hired a car to Goa. At least one of hisfriends pulled out of the trip at the last moment and so they decided to divide the expenses betweenthe rest of the people. During the journey the car required some minor repair for which they paid 250 extra. The total travelling expenses, including the repair charges, amounted to 410 per person.If each of the six friends had contributed an integral amount more than 100 initially, then what wastheir total initial contribution?
percentages and profit,loss and interest

4d
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percentages and profit,loss and interest
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4d
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abhietwup posted 5 days ago Let A,B,C,D,E be such that A,B,C are in AP; B,C & D are in GP, C,D,E are in HP; then A,C, and E are in
Ratio and proportion arun sharma problem

5d
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Ratio and proportion arun sharma problem
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5d
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sairama posted 5 days ago @sairama A,B,C,D purchase a gift worth Rs. 60. A pays 1/2 of what others pay, B pays 1/3 of what others pay and C pays 1/4 of what others are paying. What amount does D pay? 1 answer 1) 13 0 answers 2) 10 ×Please explain solution.
Time Speed Distance - Questions & Discussions

7d
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Time Speed Distance - Questions & Discussions
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7d
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hm382 posted 08:42 AM, 11 Oct '12 At how many points between 10 O'clock and 11 O'clock are the minute hand and hour hand of a clock at an angle of 30 degrees to each other? (1) 2 (2) 4 (3) 1 (4) 3 ans-btwn any hr all the angle r repeated 2 times...xcept 180 and 0...hence the ans is two..
Suggest a good book for number systems and functions

7d
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Suggest a good book for number systems and functions
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7d
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nishantmungse posted 1 week ago Can anyone suggest a good book which contains difficult questions for number systems and functions . [smiley]
Math Wizard CAT Coaching Classes - Mumbai

14 May
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- 8 Followers
Math Wizard CAT Coaching Classes - Mumbai
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14 May
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MathWizard posted 2 weeks ago Introducing, CAT coaching classes specially for commerce students. We identify your weaknesses and prepare you accordingly! Join Math Wizard and get personalised attention along with excellent coaching for CAT 2013! We promise you will secure 90+ percentile in Quant or else you get your money back! For further queries and details, email us at mathwizard91@gmail.com
Compound Interest

13 May
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Compound Interest
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13 May
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sushants posted 3 weeks ago I face lots of problem in compound interest. And when i solve compound interest question it take so much time. So in exam i should solve it or not?

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