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rfrcuhetr1
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If we have points (0,30) and (50,0) how many points on the 18 Sep 2006, 09:52
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If we have points (0,30) and (50,0) how many points on the line segment PQ have coordinates that are both integers?

Answer = 11



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If we have points (0,30) and (50,0) how many points on the 18 Sep 2006, 09:59
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I suggest that u do not give the answer since the start ;)

The equation of the line is : y = -3/5*x+30

Thus, all points between the 2 points such as described in the problem statment are represented by X growing from 0 to 50 with a step of 5.

Hence, answer is 50/5 + 1 = 11.
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If we have points (0,30) and (50,0) how many points on the Updated on: 18 Sep 2006, 10:13
Originally posted by haas_mba07 on 18 Sep 2006, 10:05.
Last edited by haas_mba07 on 18 Sep 2006, 10:13, edited 1 time in total.
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Deleted... messed up this one...
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Fig
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If we have points (0,30) and (50,0) how many points on the 18 Sep 2006, 10:11
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haas_mba07
The slope of this line is 3/5 i.e. for every 5 value increase in x, there is a 3 value increase in y.

You can count the number of multiples of 3 between 0 and 30 as 10.

Including (0,0) there are 11 points.
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Sorry haas_mba07... I think that the slope is negative : -3/5 and the point (0,0) is not included on the line :)
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If we have points (0,30) and (50,0) how many points on the 18 Sep 2006, 10:12
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*&%^... yep... you are right... I should just give up!! :(

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haas_mba07
The slope of this line is 3/5 i.e. for every 5 value increase in x, there is a 3 value increase in y.

You can count the number of multiples of 3 between 0 and 30 as 10.

Including (0,0) there are 11 points.

Sorry haas_mba07... I think that the slope is negative : -3/5 and the point (0,0) is not included on the line :)
Show more
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If we have points (0,30) and (50,0) how many points on the 18 Sep 2006, 10:16
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haas_mba07
*&%^... yep... you are right... I should just give up!! :(

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haas_mba07
The slope of this line is 3/5 i.e. for every 5 value increase in x, there is a 3 value increase in y.

You can count the number of multiples of 3 between 0 and 30 as 10.

Including (0,0) there are 11 points.

Sorry haas_mba07... I think that the slope is negative : -3/5 and the point (0,0) is not included on the line :)
Show more


he he he ;) Break time simply ;)



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 Quantitative Questions 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!