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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

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Official Quant thread for CAT 2013
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hexagon posted 23 mins ago A triangular plot of dimensions 48,40,40 has a pole in it such that the pole subtends an angle of 60 degrees with each of the vertices.Find the size of pole. 25rt3 24rt3 5rt3 none
Mensuration, Geometry & Co-ordinate Geometry

9m
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Mensuration, Geometry & Co-ordinate Geometry
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Mohitbahl posted 9 mins ago A right square pyramid is cut parallel to its base at half its height. What is the ratio of volume of smaller pyramid to that of frustum formd?
Number Systems, Progressions

17m
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Number Systems, Progressions
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Sandeep_PT posted an hour ago In a chess competition involving some boys and girls of a school, every student had to play exactly one game with every other student. It was found that in 45 games both the players were girls, and in 190 games both were boys. The number of games in which one player was a boy and the other was a girl is
Official LR-DI Thread for CAT 2013

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Official LR-DI Thread for CAT 2013
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shikha256 posted 20 hours ago On 1st July 2002, there were 9,10, 21, and 15 students who take admission to the first year of Science, Art, Agriculture and Commerce streams respectively at the university. All these courses are graduation courses and are of 3 years duration. Admission can be taken in the first year only. As per the university rules,in each stream and each year , at the most 1 student can fail. All the rest of the students progress to the next year. The following figure gives the average age of the above students in these streams as on 1st July 2002, 2003 and 2004. (Age is defined as the integral number of years a person has lived so far). 1. In 2003, across all the four streams, What is the minimum number of students who progressed to 2nd year?1. 51 2. 53 3.55 4.None of these 2. In 2004, what is the number of students of Science or Commerce who progressed to the third year? 1.23 2. 24 3. 25 4. Cannot be determined 11. Given that Rajiv was the only one who coul... Read More »
Time Speed and Distance, Work, Alligations & Mixtures

1h
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Time Speed and Distance, Work, Alligations & Mixtures
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Sandeep_PT posted an hour ago A tank has eight inlet taps to let water into the tank and four outlet taps to let water out of the tank. Each inlet tap can fill up the tank in 24 seconds, while each outlet tap takes 35 seconds to drain out the entire tank. If all the taps are opened for 4 seconds when the tank is empty, approximately what volume (in %) of the tank is filled?
Permutations and Combinations, Probability

2h
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Permutations and Combinations, Probability
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omen25 posted 2 days 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
Quant by Arun Sharma

3h
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Quant by Arun Sharma
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3h
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nintendo64 posted yesterday A bartender stole champagne from a bottle that contained 50% spirit and he replaced what he had stolen from the champagne having 20% spirit. The bottle then contained only 25% spirit. How much of the bottle did he steal ??? Tag me in the answer.
Ratio and proportion arun sharma problem

6h
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- 15 Followers
Ratio and proportion arun sharma problem
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6h
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sairama posted 1 week 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.
Algebra, Quadratic Equations, Inequalities, Functions

14h
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Algebra, Quadratic Equations, Inequalities, Functions
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peg posted 2 days ago Find the minimum value of |x - 5| + |2 - x| - |3 + x| Please tell me the easiest way to solve such questions. grin
Number System - Questions & Discussions

17h
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Number System - Questions & Discussions
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17h
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ag12345 posted 17 hours ago a watch ticks 90 times in 95 seconds and another watch ticks 315 times in 323 seconds. if both the watches are started together, how many times will they tick together in the first hr?
Cracking Nishit Sinha Problems on Quant LA and DI , A step more to bell the Cat.

22h
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Cracking Nishit Sinha Problems on Quant LA and DI , A step more to bell the Cat.
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22h
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karan_100 posted 3 weeks ago The number of natural numbers n such that "((n+1)^2)/ (n+7) " is an integer, is.. (I dont know the answer and not sure whether given ans is correct or not; so not giving correct one)
Ravi Handa Articles

1d
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Ravi Handa Articles
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ravihanda posted 6 days ago New post - CAT Logical Reasoning: Knights, Knaves and Spies telling truth and lies
Averages, Percentages, Profit Loss and Interest

1d
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Averages, Percentages, Profit Loss and Interest
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Empathy posted 5 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?
Online resources for quant

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Online resources for quant
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crackcatnow posted yesterday Someone could please suggest good online resource for preparing quant for CAT
HCF /LCM For more than two numbers

1d
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HCF /LCM For more than two numbers
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Ranng posted yesterday When we have more than two numbers, the formula- product of two numbers=HCF* LCM doesn't work. How can we find the third number when we know HCF, LCM of three numbers and Two numbers, Following the above approach? Or could you suggest a better one.?
Can any one give the detailed explanation of the solution for this Number problem

1d
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Can any one give the detailed explanation of the solution for this Number problem
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vin. posted yesterday 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.
Books On DI

3d
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Books On DI
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3d
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coolrishika269 posted 3 days ago hey arun sharma DI is pretty gud grin
Set Theory, Logarithms, Ratio Proportion & Variation

4d
- 208 Replies
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Set Theory, Logarithms, Ratio Proportion & Variation
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4d
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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?
percentages and profit,loss and interest

6d
- 36 Replies
- 98 Followers
percentages and profit,loss and interest
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6d
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abhietwup posted 1 week 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
Time Speed Distance - Questions & Discussions

15 May
- 272 Replies
- 181 Followers
Time Speed Distance - Questions & Discussions
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15 May
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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..

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