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List K consists of 12 consecutive integers. If -4 is the [#permalink]
 24 Feb 2013, 12:39
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54% (00:14) wrong based on 2 sessions
List K consists of 12 consecutive integers. If -4 is the least integer in list K, what is the range of the positive integers in list K? A. 5 B. 6 C. 7 D. 11 E. 12
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
24 Feb 2013, 12:54
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
25 Feb 2013, 20:38
Bunnel , I didn't understand when the largest positive integer in the list is 7 , how did the range become 7-1 = 6 , shouldn't it be 7
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
25 Feb 2013, 21:01
chaitanyas wrote: Bunnel , I didn't understand when the largest positive integer in the list is 7 , how did the range become 7-1 = 6 , shouldn't it be 7 No, the positive integers within the list are {1,2,3,4,5,7} for which the range is 7 - 1 = 6
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
25 Feb 2013, 21:23
nave81 wrote: List K consists of 12 consecutive integers. If -4 is the least integer in list K, what is the range of the positive integers in list K?
A. 5
B. 6
C. 7
D. 11
E. 12 Solution: Set K = ( -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7) Range is defined as the highest value of f(x) and the lowest value of f(x). Over here the range will be 7 - (-4) = 11. Try making a graph of the set K and see what is the difference between the maximum value and the minimum value.
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
26 Feb 2013, 03:07
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chaitanyas wrote: Bunnel , I didn't understand when the largest positive integer in the list is 7 , how did the range become 7-1 = 6 , shouldn't it be 7 Pushpinder wrote: Solution:
Set K = ( -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7)
Range is defined as the highest value of f(x) and the lowest value of f(x). Over here the range will be 7 - (-4) = 11.
Try making a graph of the set K and see what is the difference between the maximum value and the minimum value. The set is {-4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7}. The question asks to find the range of the POSITIVE integers in the list. The range of the POSITIVE integers in the list is {largest} - {smallest} = 7 - 1 = 6. Hope it's clear.
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
26 Feb 2013, 03:11
Oh! I misread the positive numbers. Then the range is 7 - 1 = 6
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Re: List K consists of 12 consecutive integers. If -4 is the [#permalink]
27 Feb 2013, 02:16
my god. cheating.
I want to follow this question.
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Re: List K consists of 12 consecutive integers. If -4 is the
[#permalink]
27 Feb 2013, 02:16
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