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it is 15 and not 14 because we r not told x and y r integers themselves therefore their value can be 6.9 and 8.9 also.... ie x+y<9+7 i hope it helped
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Re: If 1 < x < 7 and 2 < y < 9, what is the largest integer value of x + y [#permalink]

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14 Sep 2009, 04:19

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risys82 wrote:

If the x and y can be 6.9 and 8.9, then the sum would 15.8, which would round up to 16? Or are we assumed to round down? Or am I missing the point?

We can do round off if we are asked the approximate value in the question. But in this case, we are asked to find the "greatest integer value" and there is no mention of approximation in the question.

Re: If 1 < x < 7 and 2 < y < 9, what is the largest integer value of x + y [#permalink]

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18 Sep 2010, 10:44

cano wrote:

Interesting question. If you put the possible answers, probably we could have fallen for the trap more easily.

Also don't put tricky in the subject of the thread. This is the type of question everyone needs to practice on so they understand there can be questions where there is a distinct difference between available inputs and outputs.