Official Quant thread for CAT 2013

MBA CAT 2024
23447
@ChirpiBird said:
5
madamji koi ache se geometry questions post kar do
23448
@vbhvgupta said:
when an article is sold for 703 loss incured is 25% less than the profit earned on selling it at rs 836. What is the SP of the article when it earns a profit of 20%.
912? I get CP as 760...

regards
scrabbler
23449
@The_Loser said:
ya confirm to mera khud nhi hai, tbhi m hre. my takec) wud be same max - 45, min - 0d) max - 60, min - 10 againkoi ache se clear kardo ya.
bhai min toh dono case mein 0 hoga na...since ppl have the choice of not drinking any of the drinks...toh min ke liye koi bhi kuch bhi nahi pi raha....hence 0...

and max wale ke liye upar solve kara meine...chk karo...
23450
@vbhvgupta said:
A bought toffee at 6 for a rupee. how many for a rupee he shd sell to gain 20%.
5..
1 cofee for 1/6
so 20% gain k liye...
1/6*6/5 = 1/5
so for 1 rupee 5 coffee
23451
@vbhvgupta said:
when an article is sold for 703 loss incured is 25% less than the profit earned on selling it at rs 836. What is the SP of the article when it earns a profit of 20%.
CP : 760, sP 912.. for 20%profit.

23452
@scrabbler said:
912? I get CP as 760...regardsscrabbler
I too..
23453
@scrabbler said:
912? I get CP as 760...regardsscrabbler
bhai yeh bhi orally mil gaya tha kya?
23454
@scrabbler said:
912? I get CP as 760...regardsscrabbler
758.88 type ka kuch ara h ya exact 760??

Sorry Messed up with calculations

Ans : 912 ..
23455
@Logrhythm said:
let CP = x(x-703)/x = .75(836-x)/x x-703 = 627-0.75x1.75x = 1330 x = 760...for 20% profit -> 1.2*760 = 912...
@ScareCrow28
23456

there are 5 parameters A,B,C,D,E on which MBA coaching insti being evaluated,
there are 100 coaching insti.
each insti atleast fulfils one criteria.

Parameter .................................. A B C D E
No f insti fullfiling the parameter.....33 26 39 34 19

find max & min.
No f insti which may fulfil
a)exactly one criteria,
b)exactly two,
c)exactly three ,
d)exactly 4
e)exactly 5.





23457
@Logrhythm said:
Yeah..I wrote 625 instead of 627 That's why the fallacy
23458
@anytomdickandhary said:
(2f(x+2)-1)^2 = 4*(f(x) - f(x)^2) =>f(x) + f(x+2) = f(x)^2 + f(x+2)^2 +1..........................(i)=>f(x+2) + f(x+4) = f(x+2)^2 + f(x+4)^2 + 1..................(ii)subtracting we get (ii) from (i) we getf(x)-f(x+4) = {f(x) - f(x+4)} * {f(x) + f(x+4)}=> either f(x) = f(x+4) or f(x)+f(x+4) = 0if f(x) = f(x+4) then option (b) is true.
Nice attempt ATDH.

There is an error that i have highlighted above as underlined. Basically it should be either f(x) = f(x+4) or f(x)+f(x+4) = 1. So you do not need to pursue further :)

Here is my solution:
[f(x+2)- 1/2]^2 = 1/4 - [f(x) - 1/2]^2
putting x=x+2
[f(x+4)- 1/2]^2 = 1/4 - 1/4 +[f(x) - 1/2]^2 = [f(x) - 1/2]^2 => f(x+4) = f(x)

Hence option b is the correct choice.

23459
@iLoveTorres said:
madamji koi ache se geometry questions post kar do
are ye madam hai kya...maine to kal inhe bhai bana dia....
23460
@vbhvgupta said:
are ye madam hai kya...maine to kal inhe bhai bana dia....
bhai pata nahi.. mujhe khud aaj ek shock laga.. yaha pe ek ladke ne apni id rakhee ke naam se banayi hai pata chala ki rakhee bhai hai :P
23461
@iLoveTorres said:
bhai yeh bhi orally mil gaya tha kya?
Yes....not too difficult to do so in fact! Consider this:

When an article is sold for 703 loss incured is 25% less than the profit earned on selling it at rs 836. What is the SP of the article when it earns a profit of 20%.

Loss in 1st case is 25% less i.e. 3/4 of profit in 2nd case. Think of them as 3x and 4x.
Difference is 836 - 702 = 133. Make it into 7 parts = 19 each, so 3 parts is 57 (the loss) and 4 parts is 76 (the profit). So CP is 703 + 57 = 760 and hence final SP is 760 + 76*2 =912.

regards
scrabbler
23462
@The_Loser said:
80% ple drink tea70% ple drink coffee60% ple drinkcoke,find max & min number f ple which drinka)exactly 1 drink when each person in city drink at least 1 drinkb)exactly 3 drinks when each person in city drink at least 1 drink
Max - 45%
Max - 55%
Min - 0
Min - 10%
23463
@scrabbler said:
Yes....not too difficult to do so in fact! Consider this:When an article is sold for 703 loss incured is 25% less than the profit earned on selling it at rs 836. What is the SP of the article when it earns a profit of 20%.Loss in 1st case is 25% less i.e. 3/4 of profit in 2nd case. Think of them as 3x and 4x.Difference is 836 - 702 = 133. Make it into 7 parts = 19 each, so 3 parts is 57 (the loss) and 4 parts is 76 (the profit). So CP is 703 + 57 = 760 and hence final SP is 760 + 76*2 =912.regardsscrabbler
Take a bow! \\___//
23464
@vbhvgupta said:
are ye madam hai kya...maine to kal inhe bhai bana dia....
:P 😛 yesh, me is madam zeee!!
#RIPeng!
@iLoveTorres said:
madamji koi ache se geometry questions post kar do
i'm at my friend's place.. dont hv my lapi here ... will post some ques tomo .. :)
23465
@scrabbler ____/\___
23466
@scrabbler said:
Yes....not too difficult to do so in fact! Consider this:When an article is sold for 703 loss incured is 25% less than the profit earned on selling it at rs 836. What is the SP of the article when it earns a profit of 20%.Loss in 1st case is 25% less i.e. 3/4 of profit in 2nd case. Think of them as 3x and 4x.Difference is 836 - 702 = 133. Make it into 7 parts = 19 each, so 3 parts is 57 (the loss) and 4 parts is 76 (the profit). So CP is 703 + 57 = 760 and hence final SP is 760 + 76*2 =912.regardsscrabbler
bhai agar cat exam mein proxy possible ho jaye toh aap zarur chale jana mere liye 😛 but on a serious not