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If k is an integer such that 224 < k < 256, what is the value of k/16?

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If k is an integer such that 224 < k < 256, what is the value of k/16?  [#permalink]

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New post 30 Apr 2018, 07:13
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Question Stats:

63% (01:58) correct 37% (02:20) wrong based on 68 sessions

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If k is an integer such that 224 < k < 256, what is the value of k/16?  [#permalink]

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New post 30 Apr 2018, 15:07
Bunuel wrote:
If k is an integer such that 224 < k < 256, what is the value of k/16?

(1) \(\sqrt{k} < 16\)
(2) k is divisible by 16.


1. \(\sqrt{k} < 16\), so k<256. It can be any number. - Not Sufficient
2. k is divisible by 16.[/quote], 224 is divisible by 16, the next is 240, and the next is 256, but 224 and 256 are not in the range, so only 240 can be that number - Sufficient

Answer (A)
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Re: If k is an integer such that 224 < k < 256, what is the value of k/16?  [#permalink]

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New post 30 Apr 2018, 20:55
Hero8888 wrote:
Bunuel wrote:
If k is an integer such that 224 < k < 256, what is the value of k/16?

(1) \(\sqrt{k} < 16\)
(2) k is divisible by 16.


1. \(\sqrt{k} < 16\), so k<256. It can be any number. - Not Sufficient
2. k is divisible by 16.
, 224 is divisible by 16, the next is 240, and the next is 256, but 224 and 256 are not in the range, so only 240 can be that number - Sufficient

Answer (A)[/quote]

Hello

Your explanation is fine, but when second statement is sufficient to answer the question, and not first, then we mark the answer as B.
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Re: If k is an integer such that 224 < k < 256, what is the value of k/16?  [#permalink]

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New post 17 May 2018, 06:30
I) √k <16

√225<16 but 225 is not divisible by 16
√240 <16 but 240 is divisible by 16

Insufficient

II) within 224<k<256

Only 240 is divisible by 16 so
K/16=15
Unique value
Sufficient

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Re: If k is an integer such that 224 < k < 256, what is the value of k/16? &nbs [#permalink] 17 May 2018, 06:30
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