Bunuel wrote:

pavan2185 wrote:

Haven't quite understood the Question;Can someone help what is it exactly asking?

"[x] is the greatest integer less than or equal to the real number x" means that some function [] rounds DOWN a number to the nearest integer. For example [1.5]=1, [2]=2, [-1.5]=-2, ...

Now, since \([\sqrt{n}] = 17\), then \(17\leq{\sqrt{n}}<18\) --> ANy number from this range when rounded down to the nearest integer is 17.

Hope it helps.

We are only told that "[x] is the greatest integer

less than or equal to the real number .."

And the answer is given as 1, so this makes 17<= sqrt(n) <

18Where does the 18 come from? why cant it be 17<= sqrt (n) < 20??

Thanks