Data Suffciency Question Discussions for CAT 2012

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Hi all Please carry forth the discussions on Data Sufficiency for CAT 2012 and other MBA exams for the upcoming season here. Link to thread of last year: http://www.pagalguy.com/forum/quantitative-questions-and-answers/70785-data-suffcie...
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In a college, five different subjects viz Physics, Chem, Botany, Zoology and maths are taught on five different days of same week starting from Monday to Friday. Is Chemistry taught on Friday?

1) Two subjects are taught between Zoology and Maths.Maths is taught before Zoology. Chem is taught immediately next to the day when physics is taught. Botany is not taught on Friday?

2)Three lectures are taught between Botany and Zoology. Maths is  taught immediately before Physics.

1st is sufficient, 2nd is not
2nd is sufficient, 1st is not
Both are together insufficient to solve the question
Either one or both statements individually sufficient
Both statements are together required to solve the answer
13 answers
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of the 60 animals , 2/3 are either pigs or cows .How many are cows?

1)the farm has more than twice as many cows as it ha spigs
2) the farm has more than 12 pigs

Options:

(1) If answer can given using statement 1 only

(2) If answer can be given using statement 2 only

(3) If answer can be given using either 1 or 2.

(4) If answer cant be given even by using both 1 and 2.

(5) If answer can given using both 1 and 2.

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Are x and y both positive ?????
1) 2x-2y=1
2)x/y >1

Options:

(1) If answer can given using statement 1 only

(2) If answer can be given using statement 2 only

(3) If answer can be given using either 1 or 2.

(4) If answer cant be given even by using both 1 and 2.

(5) If answer can given using both 1 and 2.
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@niranjan031286 said:
Five friends, P, Q, R, S and T went to college independently. Each one of them reached at a different time. If only Q reached after R and S. who was the last person to reach?optionsPTQCannot be determinedNone of these
CBD.. data insufficient
kuch karne ki ab hai thaani arre rok ke dikha na maamu!!!
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Five friends, P, Q, R, S and T went to college independently. Each one of them reached at a different time. If only Q reached after R and S. who was the last person to reach?

options
P
T
Q
Cannot be determined
None of these
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Consider the integers x,y,z . What is the min possi value of x^2 +y^2+z^2?

A : x+y+z= 89 B: Among x,y,z two are equal.
1)using A alone not B alone
2)using B alone not A alone
3)A n B togethr not either a or b alone
4) Cant be answered with a n b also.



Approach k sath likhna dostoon MG
When you want something as badly as you want air to breathe , thats when u get it !
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@erm said: @swetad
hey even i understood this but go to know that statement 2 could only answer that is
due to the consideration of fractional nos. eg 15*2/3=10 hence even toh isliye man
If that is the case then x is 2/3 which is a fraction. Then it is neither odd nor even. so u meant taking as fractional implies x is neither odd nor even ...........ya u right man thanks got it
life has given u a chance to succed or not its ur choice
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@[534727:swetad]

@swetad said:
Ans is (d) as anyone statement tells us that x is odd

hey even i understood this but go to know that statement 2 could only answer that is
due to the consideration of fractional nos.
eg 15*2/3=10 hence even toh isliye man
life has given u a chance to succed or not its ur choice
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@peligro said:
@erm bro the options are not clear.. is C option both taken together or both taken seperately??
3 and 15 are odd so odd*odd = odd no so we can answer with both taken alone.
yeah bt i got to know the answer to this question is by only statement II and not I
considering fractional nos.
eg 15*2/3=10

but i could understand how this is not true for 3*2/3=2

hence plz explain if understood
life has given u a chance to succed or not its ur choice
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@erm said: is x is odd???I 3x is odd. II 15x is odd.a) statement I is sufficent to answer & not II b)statement II is sufficent to answer & not I c) both d) none of these
@[510729:erm] bro the options are not clear.. is C option both taken together or both taken seperately??
3 and 15 are odd so odd*odd = odd no so we can answer with both taken alone.
kuch karne ki ab hai thaani arre rok ke dikha na maamu!!!
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