Official Quant thread for CAT 2013

@dream_IIMA

Please find ahead the attached question

If x= -0.75 which of the following options is greatest

1/(x+1)

-1/(x-1)

Root of (x+1)

2^(x+1)

X+1


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if x+y=a and xy=b then the value of 1/x^3+1/y^3 is

a^3 – 3ab

(a^3+3ab)/b^3

(a^3- 3ab)/b^3

a^3+3ab

After travelling 30 min, a train met with an accident and was stopped there for 45 min. Due to the accident, its speed reduced to 2/3 of its former speed and the train reached its destination 1 hr 30 mins late. Had the accident occurred 60 km after the point it occurred earliers, the train would have reached 30 mins earlier. The length of the journey is

Select one:

a. 90 km

b. 120 km

c. 150 km

d. 180 km

k lies btw

0

0

5

k>10

Please find ahead the attached question

Please find ahead the attached question

N = 144^3 + 22^3 – 166^3, then N is necessarily divisible by

both 11 and 13

both 12 and 83

both 7 and 19

both 7 and 11

both 11 and 83

an octagon is inscribed in a circle. find the ratio of area of octagon to the area of circle

  • 2root2/pi
  • 3/pi
  • 4/pi
  • none of this

0 voters

Please find ahead the attached question

Find x^3 + y^3 + z^3 – 3xyz, when x + y + z = 9 and xy + yz + zx = 11

1. 297

2. 394

3. 432

4. 199

5. 630

if the above expression is equal to 11 where A,B and C are positive integers the numbers of different ordered triplets (a,b,c) such that a+2b+c


33

37

40

42

@mak1901 @Ankurk14 @supriya check this question you will definitely like it :)

In how many ways can 4 different balls be placed in 4 identical boxes??


@anandmadhav

During his morning walk in Panchkula Park, Deepak warms up initially by walking a few rounds at 4 km/h. He then jogs a few rounds at 8 km/h. Panchkula Park has a jogging track of length 200 m. If Deepak's average speed during his 1 hour exercise is 6 km/h, then how many rounds does Deepak require for warming up?

A)10

B)20

C)30

D)25

A man cheats while buying as well as selling. While buying he takes 10% more than what he pays for and while selling he gives 20% less than what he claims to. Find the profit pecentage if he sells at 9.09% below the cost price of the claimed weight ?

1. 25% 2. 37.5% 3. 56.25% 4. 50% mg

PS: I want to know who has reported this as a CAT question !! as you can find this question on PG in last year's thread !! Moderators plz see to this !! PAGALGUY.India and other moderators plz see when ppl report the question as CAT Question they donot do it intentionally !!



## who has reported it FYI :



Moderators do take an action if report is found inappropriate from either ends !! :angry: :angry:


The sum of N consecutive natural numbers is 750 . How many values N can take ? .. Whether to answer it 7 or 8 ??

In a triangle, two sides are equal and its perimeter is y cm. The difference between the longer side and a shorter side is x cm. If one of the angles is a right angle, what is the area of this triangle?

A)(yx)^2 / 18

B)(y – 3x)^2 / 18

C)(yx)^2 / 8

D)Cannot be determined

21^231 divided by 25? kindly explain