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vd
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Set S consists of 6 integers selected from -12 to 12, 03 Jun 2008, 22:39
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Set S consists of 6 integers selected from -12 to 12, inclusive. If the sum of the set is positive, at most how many numbers in the set can be negative
1
2
3
4
5


Dont agree with the OA again

let s have a discussion on this

thanks



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Set S consists of 6 integers selected from -12 to 12, 03 Jun 2008, 22:47
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vdhawan1
Set S consists of 6 integers selected from -12 to 12, inclusive. If the sum of the set is positive, at most how many numbers in the set can be negative
1
2
3
4
5


Dont agree with the OA again

let s have a discussion on this

thanks
Show more


At most 5 elements can be -ve.

Since the question does not mention "distict integers" assuming a number can be repeated.
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Set S consists of 6 integers selected from -12 to 12, 03 Jun 2008, 22:51
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alpha_plus_gamma
vdhawan1
Set S consists of 6 integers selected from -12 to 12, inclusive. If the sum of the set is positive, at most how many numbers in the set can be negative
1
2
3
4
5


Dont agree with the OA again

let s have a discussion on this

thanks


At most 5 elements can be -ve.

Since the question does not mention "distict integers" assuming a number can be repeated.
Show more
ya that s precisely the point ...the answer i got was 5 and also it no where says that we cant repeat the integer...

the OA says it is 4

can we have more views on this
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Set S consists of 6 integers selected from -12 to 12, 04 Jun 2008, 02:26
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alpha_plus_gamma
vdhawan1
Set S consists of 6 integers selected from -12 to 12, inclusive. If the sum of the set is positive, at most how many numbers in the set can be negative
1
2
3
4
5


Dont agree with the OA again

let s have a discussion on this

thanks


At most 5 elements can be -ve.

Since the question does not mention "distict integers" assuming a number can be repeated.
Show more

How did you get the number as 5. Did you repeat the numbers?
If I dont repeat the number the answer is only 4
for max number of -ve integers, we use the least negative ones.
-1,-2,-3,-4
but if we also put -5
then for the sum of the set to be +ve, we need aminimum of 16 as the 6th number.
while the max number mentioned in the set is only 12.
That is my understanding.
I will go with four
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Set S consists of 6 integers selected from -12 to 12, 04 Jun 2008, 04:45
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4 max.

You have to start with smallest negative integers in the given range. Let us take -

-1, -2, -3 , -4

This gives us -10. If we choose postive numbers more than 5 and 6 we have the result positive.

We can not -5 to the above list as the negative numbers will add upto a minimum of -15 and no single positive number in the given range can be added for a positive result.
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Set S consists of 6 integers selected from -12 to 12, 04 Jun 2008, 10:59
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The question is flawed in case the answer given is 4. Distinct should be mentioned.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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