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If x is a negative integer greater than -10

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If x is a negative integer greater than -10 [#permalink] New post 24 Nov 2012, 08:36
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If x is a negative integer greater than -10, is z greater than average of x and -10?
1) z is closer to -10 than x on the number line
2) z = 5x
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Re: If x is a negative integer greater than -10 [#permalink] New post 24 Nov 2012, 11:32
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joylive wrote:
If x is a negative integer greater than -10, is z greater than average of x and -10?
1) z is closer to -10 than x on the number line
2) z = 5x


The average of x and -10 is equidistant from x and -10 on the number line.

1) Sufficient. We can see that z is closer to -10 and hence is lesser than the average.

2) Insufficient. x=-9, z= -45, average(x,-10) = -9.5, So z<average
x=-1, z = -5 , average(x,-10) = -5.5, So z>average

Answer is A

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Re: If x is a negative integer greater than -10 [#permalink] New post 25 Nov 2012, 05:28
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joylive wrote:
If x is a negative integer greater than -10, is z greater than average of x and -10?
1) z is closer to -10 than x on the number line
2) z = 5x


Similar questions to practice:
if-x-is-a-positive-number-less-than-10-is-z-greater-than-86563.html
if-x-is-a-positive-integer-less-than-10-is-z-greater-than-128086.html
if-y-is-a-negative-number-greater-than-8-is-x-greater-than-95138.html

Hope it helps.
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Re: If x is a negative integer greater than -10   [#permalink] 25 Nov 2012, 05:28
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