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For how many integers, a, is it true that 2 < |a| < 9?

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For how many integers, a, is it true that 2 < |a| < 9?  [#permalink]

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New post 21 Jan 2019, 02:15
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A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

67% (00:43) correct 33% (00:38) wrong based on 149 sessions

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Re: For how many integers, a, is it true that 2 < |a| < 9?  [#permalink]

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New post 21 Jan 2019, 02:50
1
|a| is always positive.
a can take 3,4,5,6,7,8 and -3,-4,-5,-6,-7,-8.
Total 12 values.

E is the answer.
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Re: For how many integers, a, is it true that 2 < |a| < 9?  [#permalink]

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New post 21 Jan 2019, 03:24
Bunuel wrote:
For how many integers, a, is it true that 2 < |a| < 9?

A 4
B 5
C 6
D 10
E 12


Given,

2 < |a| < 9

**** |a| yields positive integers.

So, we must consider both positive and negative integers withing this range.

a = 3 , 4, 5, 6 , 7 , 8.

a = -3, -4, -5, -6, -7 , -8


Total: 12 integers.

E is the correct answer.
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Re: For how many integers, a, is it true that 2 < |a| < 9?  [#permalink]

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New post 21 Jan 2019, 08:56
Bunuel wrote:
For how many integers, a, is it true that 2 < |a| < 9?

A 4
B 5
C 6
D 10
E 12


2 < |a| < 9
lal = for both + & -ve (3,4,5,6,7,8)

total 12 IMO E
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Re: For how many integers, a, is it true that 2 < |a| < 9?   [#permalink] 21 Jan 2019, 08:56
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