Official Quant thread for CAT 2013

MBA CAT 2024
28325
@albiesriram said:

54? 3/10 of 180?

regards
scrabbler
28326
@techgeek2050 said:
Ramesh bought a total of 6 fruits (apples and oranges) from the market. He found that he required one orange less to extract the same quantity of juice as extracted from apples. If Ramesh had used the same number of apples and oranges to make the blend, then which of the following correctly represents the percentage of apple juice in the blend?A. 25%B. 33.3%C. 60%D. 66.6%E. none of theseApproach plz
A, (6-A)

Jorange*(5-A) = Japple*A
Jorange = A/(5-a) * JApple

3 oranges and 3 apples

Orange juice = 3*Jorange
Apple Jiuce = 3*JApple = (5-a)/a * Jorange
Total = (3 + (5-a)/a ) * Jorange

%Japple = (5-a)/a / (3 + (5-a)/a )
Put, a = 3

2/3 / (3+2/3) = 2/11 = 18.18% ??

IIFT2012 Question in which I am still unsure as to how to solve!
28327
@albiesriram said:
54 hai ka babua??
28328
@albiesriram said:
54 ?

interior angle = (2*10 - 4)*90/10 = 144
angle A0A3A7 = 3*144/8 = 54
28329
@ScareCrow28 said:
A, (6-A)Jorange*(5-A) = Japple*AJorange = A/(5-a) * JApple3 oranges and 3 apples Orange juice = 3*Jorange Apple Jiuce = 3*JApple = (5-a)/a * Jorange Total = (3 + (5-a)/a ) * Jorange%Japple = (5-a)/a / (3 + (5-a)/a ) Put, a = 32/3 / (3+2/3) = 2/11 = 18.18% ?? IIFT2012 Question in which I am still unsure as to how to solve!
it was in XAT 2013 so i don't have the OA. but i get your approach.

28330
@albiesriram said:
108 h kya???
Question pura samajh ni aa rha!!
28331
@techgeek2050 said:
it was in XAT 2013 so i don't have the OA. but i get your approach.
I am getting a feeling ki IIFT ka tha 😛 Anyways, I don't know I was correct that time or not!
28332
@albiesriram said:
(144/8)*3 = 54
28333
@techgeek2050 said:
(144/8)*3 = 54
Why is 144 divided by 8??
28334
28335

In decagon question --the triangle in which A0A3A7 is contained has two of its angles 72. I am getting 36. Please post a diagram...

28336
@albiesriram said:
C?

1+1+1 = 3 for straight paths along the sides

3 X (2pi/3) = 2pi for curved paths around the vertices
28337
@KaranGarcia said:
Why is 144 divided by 8??
there are 10 sides and 8 of them will subtend angle at A3. total angle is 144. so angle subtended by 1 side = 144/8

we need angle A0A3A7, which is angle subtended by 3 sides, so multiply by 3.

it will be clear with a figure

28338
@albiesriram said:
@albiesriram said:
c ???
28339
@albiesriram said:
B
28340
@albiesriram said:
2pi + 3 ?
28341
@albiesriram said:
3 + 2pi....edit?

3 + 120/360*2*pi*1*3 = 3 + 3*(2pi/3) = 3 + 2pi
28342

Locus cant be circle in this case?

28343
28344
@albiesriram said:
a. 0?