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Moderator  Joined: 18 Apr 2015
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If the tick marks on the number line below are evenly spaced [#permalink]
Expert's post 00:00

Question Stats: 22% (00:26) correct 77% (01:11) wrong based on 9 sessions

If the tick marks on the number line below are evenly spaced, what value is represented by x?

< ---------- $$X$$ -----------------| -----------------|-------------------|-------------- $$2^5$$ --------------- $$2^6$$ ------------- | --------->

A. $$2^0$$

B. $$2$$

C. $$-2 * 2^5$$

D. $$-3 * 2$$^5

E. $$-4 * 2^5$$
[Reveal] Spoiler: OA

_________________
Director Joined: 03 Sep 2017
Posts: 521
Followers: 1

Kudos [?]: 344 , given: 66

Re: If the tick marks on the number line below are evenly spaced [#permalink]
Since the distance between two ticks is always equal to 2^6-2^5 = 2^5 or 32, if we count back the ticks subtracting 32 for each one, we get that X = -3*2^5. Answer D
Intern Joined: 26 Sep 2017
Posts: 31
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Kudos [?]: 3 , given: 19

Re: If the tick marks on the number line below are evenly spaced [#permalink]
isn't it inc exponentially so we need to go back which is 2 on reaching X?
Director Joined: 03 Sep 2017
Posts: 521
Followers: 1

Kudos [?]: 344 , given: 66

Re: If the tick marks on the number line below are evenly spaced [#permalink]
bim1946 wrote:
isn't it inc exponentially so we need to go back which is 2 on reaching X?

It is not increasing exponentially. The questions states that each two tick are evenly spaced so all the tick are distant 2^6 - 2^5 = 32 or 2^5. Re: If the tick marks on the number line below are evenly spaced   [#permalink] 30 Sep 2017, 04:58
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