DS 1 Is X*Y

Question

DS 1

Is X*Y 0


DS 2

If x is an integer , is x / 2 an EVEN integer 

I x is a mulitple of 2 

II x is a multiple of 4

ssap · Answer

DS1 - 'C'
S1: x is +ve or -Ve and y = -ve
S2: x is +ve and y = +ve or -ve
S1 & S2 => x= +ve, y = -ve
Hence, suffiient.


DS2 - B
S1: 6,10,14 etc when dived by 2 yield odd numbers.
Hence, Insuff
S2: 4,8,12, 16 when divided by 2 yield even integers
Hence Sufficient

rxs0005 · Answer

Q 1 is ok 

for Q 2 in II if x = 20 then 20 / 4 = 5 its a odd intger won the answer be E to this ???

Folaa3 · Answer

I think it should be B because if X is a multiple of 4, and we use 20 like you said, then that means 20/2 = 10 (as the question stem ask if x/2 is even) is even.

HowManyToGo · Answer

DS1. C

x^2 + y^3 < 0.
as x^2 >0 , y^3 < 0 , i.e y < 0.
But then x be + or -, so we can't say what xy would be.
Using (2) x has to be + , hence xy negative.
Hence C.

HMTG.

tobiastt · Answer

For me its:
DS 1. C ( A is not sufficient ) 
DS 2. B

DS 1 Is XY < 0 I X^2 Y^3 < 0 II X * Y^2 > 0 DS 2

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DS 1 Is X*Y < 0 I X^2 * Y^3 < 0 II X * Y^2 > 0 DS 2