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# If y is an integer and y = |x|+x what is the value of y? 1.

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VP
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If y is an integer and y = |x|+x what is the value of y? 1. [#permalink]  03 Jun 2006, 09:51
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If y is an integer and y = |x|+x what is the value of y?
1. x < 0
2. y < 1
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

Manager
Joined: 19 Apr 2006
Posts: 231
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Kudos [?]: 1 [0], given: 0

'A'

1. x<0
any value for x <0 will lead to Y=0.

2. y<1
not sufficient because we do not know anything about X
Manager
Joined: 22 May 2006
Posts: 71
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Kudos [?]: 0 [0], given: 0

1. x<0
any value for x <0 will lead to Y=0.

2. y<1

now it is given y=x+|x|.
hence,y should be 2x(if x is positive) or else 0.
in no case y is not going to be a negative integer...
it is given y<1
hence the value of y should be a nonnegative integer.
0 is also a non-negative integer hence,we can say tht the value of y=0.

hence statement 2 is also suffucient.
Manager
Joined: 29 Apr 2006
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parvathaneni wrote:
1. x<0
any value for x <0 will lead to Y=0.

2. y<1

now it is given y=x+|x|.
hence,y should be 2x(if x is positive) or else 0.

What about Y having a value of 2X when x is positive? That would give you a number of different values of y fo different values of x.
Senior Manager
Joined: 09 Aug 2005
Posts: 286
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Kudos [?]: 2 [0], given: 0

any value for x <0 will lead to Y=0.

2. y<1

now it is given y=x+|x|.
hence,y should be 2x(if x is positive) or else 0.[/quote]

What about Y having a value of 2X when x is positive? That would give you a number of different values of y fo different values of x.[/quote]

y is an integer so y=0,-1,-2 ..................

if X is positive then 2x is positive y <1 and integer per statement 2

so y has got to be 0
Manager
Joined: 10 May 2006
Posts: 186
Location: USA
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Kudos [?]: 3 [0], given: 0

Great explanations....agree with D.

The minimum that y can be is 0. Since y is an integer and is <1, it must equal 0.
VP
Joined: 29 Dec 2005
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Re: DS: Mod1 [#permalink]  03 Jun 2006, 19:13
giddi77 wrote:
If y is an integer and y = |x|+x what is the value of y?
1. x < 0
2. y < 1

D too.

1 says x is -ve integer. y = 0 given that x is -ve.
2 says y cannot be -ve. if so, then y can only be 0.

great question and nice discussions.
VP
Joined: 21 Sep 2003
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Kudos [?]: 39 [0], given: 0

Of course OA is D. You guys ROCK!
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

Manager
Joined: 22 May 2006
Posts: 71
Followers: 1

Kudos [?]: 0 [0], given: 0

parvathaneni wrote:
1. x<0
any value for x <0 will lead to Y=0.

2. y<1

now it is given y=x+|x|.
hence,y should be 2x(if x is positive) or else 0.

What about Y having a value of 2X when x is positive? That would give you a number of different values of y fo different values of x.

0 is the only non-negative integer less than 1
Manager
Joined: 09 May 2006
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Location: Bangalore, India
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Kudos [?]: 11 [0], given: 0

OOH! Good question!
Manager
Joined: 31 Mar 2006
Posts: 163
Followers: 1

Kudos [?]: 11 [0], given: 0

Really confused with the propeties of Zero? Read that Zero was neither positive nor negative? Also pleas elet me know if zero is even?
Request someone to throw light on the properties of ZERO?
Director
Joined: 16 Aug 2005
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Location: France
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Kudos [?]: 10 [0], given: 0

(1) |x| = -x; y= -x+x = 0
(2) For y to be integer, |x| + x = an integer. if x<0 then y=0. If x>0 then y=2x (not possible as y<1). Hence y=0

D it is
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Manager
Joined: 10 May 2006
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Location: USA
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Kudos [?]: 3 [0], given: 0

amansingla4 wrote:
Really confused with the propeties of Zero? Read that Zero was neither positive nor negative? Also pleas elet me know if zero is even?
Request someone to throw light on the properties of ZERO?

0 is neither positive nor negative.
0 is even.
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