Official Quant thread for CAT 2013

MBA CAT 2024
26788
@heylady said:
81=3*(3+x)x=24??
ΔAPS and ΔAOC are similar triangles.
Where OC = r
r/(r + 3) = 9/{81 + (2r + 3)^2}^1/2
Now use the options. Hence, the diameter is 9 km.
26789
@maroof10 said:
Ram marks up his goods by 40% and gives a discount of 10%.Apart from this,he uses faulty balance which reads 800 gms for 1000 gms .What is his net profit/loss percentage?
1000 grm=1000rs
MP=1400
SP=1400-140=1260

1000g(actual)=800 gm
1000gm(fake)=1000/800 *1000=10000/8=1250 gm
CP=1250
Sp=1260
10/1250 *100=4/5=0.8%??
26790
Last one..
26791
@Subhashdec2 ans is 57.5%
26792
@maroof10 57.5

26793
@maroof10 said:
@Subhashdec2 ans is 57.5%
use successive %age --> +40% ,-10% and +25%

so net % profit=57.5%

Team BV--Pratik Gauri
26794
@Ashank.Dubey said:
ΔAPS and ΔAOC are similar triangles.Where OC = rr/(r + 3) = 9/{81 + (2r + 3)^2}^1/2Now use the options. Hence, the diameter is 9 km.
intuition sucked this tym....PA=9 Km lag raha tha....
26795
@scrabbler said:
Er, what options? The solution you posted says "use options" but original posts did not have options so it was a much more painful solution!!regardsscrabbler
Use pythagoras triplets.
26796
@maroof10 said:
@Subhashdec2 ans is 57.5%
i guess den 800 grm actual are read as 1000gm for the customer

CP=800
SP=1260
460/800=57.5%
26797
@albiesriram said:
Last one..
I couldn't get the question properly...but still is the answer 49 ?
26798
@albiesriram said:
Last one..
integers starting from 20 with common difference of 20...total 50 terms...
26799
@iLoveTorres said:
50 by any chance?
No.. Try again one more time..
@Ashank.Dubey said:
Use pythagoras triplets.
26800
@albiesriram said:
Last one..
all the even integers starting from 20

20,22,......1000
490
26801
@ScareCrow28 said:
I couldn't get the question properly...but still is the answer 49 ?

How exactly u couldn't get it? and 49 is not the OA.

@heylady said:
integers starting from 20 with common difference of 20...total 50 terms...



26802
@albiesriram said:
Last one..
i guess all 1000 can be got.. like to get 1 you can put .125 for getting 2 you can put .166 etc.
26803
@abhishek.2011 said:
all the even integers starting from 2020,22,......1000490
:(
26804
@albiesriram said:
Last one..
I used my own created SMALL CASE THEORY method ..
getting answer as 600 .. is it right? if yes ,i'll share my approach :)

Team BV--Pratik Gauri
26805
@albiesriram said:
whats the problem ????
put x=1.1 ,1.2.......1.9,2
it gives all the even values??
26806
@bodhi_vriksha said:
I used my own created SMALL CASE THEORY method ..getting answer as 600 .. is it right? if yes ,i'll share my approach Team BV--Pratik Gauri
Correct sir, Share your valuable approach..
26807
@maroof10 said:
Ram marks up his goods by 40% and gives a discount of 10%.Apart from this,he uses faulty balance which reads 800 gms for 1000 gms .What is his net profit/loss percentage?
Let for 1kg CP = 100 rs
for 800gm CP = 80rs

SP = 126(after raising price and giving discount)

PP = 57.5 %