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Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be
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Bunuel
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Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be [#permalink] New post  26 Jan 2021, 02:00
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Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be the value of xy?

(A) 0
(B) 8
(C) 12
(D) 16
(E) 24
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Re: Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be [#permalink] New post  26 Jan 2021, 04:15
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Bunuel wrote:
Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be the value of xy?

(A) 0
(B) 8
(C) 12
(D) 16
(E) 24


0 ≤ x ≤ 3 and y < 8

i.e. x*y < 24

i.e. x*y can NOT be equal to 24 hence

Answer: Option E
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Sabby
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Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be [#permalink] New post  Updated on: 01 Feb 2021, 10:51
Hi,

Because the maximum value of x is 3 and the maximum value of y is 7 (as y<8), the maximum value of xy is 21. Therefore it cannot be 24

Answer C)
Edit: my bad I wrote answer C) instead of answer E)

Originally posted by Sabby on 27 Jan 2021, 16:25.
Last edited by Sabby on 01 Feb 2021, 10:51, edited 1 time in total.
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ashimakumari
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Re: Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be [#permalink] New post  01 Feb 2021, 10:46
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How can option d be made?

16 has 3 possibilities : 1x16, 2x8 and 4x4
None of which are possible

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Sabby
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Re: Given that 0 ≤ x ≤ 3, and y < 8, which of the following could NOT be [#permalink] New post  01 Feb 2021, 10:57
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ashimakumari wrote:
How can option d be made?

16 has 3 possibilities : 1x16, 2x8 and 4x4
None of which are possible

Posted from my mobile device


ashimakumari

Hi,

It can be possible when x=2,5 and y=6,4 which is why they do not mention that x and y have to be integers
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