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Roots

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Roots

by moonlite » Sat Oct 04, 2008 6:57 am
If root n is a positive integer, what is the value of n?

(1) 1 <root n <5
(2) l0 < n < 24

OA is B

Can't we use st1 to determine n? Thanks.
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by kris610 » Sat Oct 04, 2008 7:11 am
The stem tells you that n is a perfect square.

A tells you that n could be 4,9 or 16. Not sufficient.

B tells you that n is 16 -- this the only perfect sq. in the range given.
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Re: Roots

by 4meonly » Sun Oct 05, 2008 3:45 am
please post questions correctly
What does it means?
moonlite wrote: (2) l0 < n < 24
10 < n < 24?
If yes, then in this range there is only 1 number whose sqrt is integer - it is 16
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