"If (sqrt)x is an integer, what is the value of (sqrt)x?
(1)5<x<15
(2)1<x<4 "
From st.1 : (sqrt)25 <(sqrt)x < (sqrt)225 and since (sqrt)x is an integer the possible value can only be (sqrt)81=9 SUFFICIENT
St.2 says that (sqrt)1 <(sqrt)x <(sqrt)16 so the possible values are 2 and 3 . So it's insufficient.
Am I right?
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
sqrt x
This topic has expert replies
-
theCodeToGMAT
- Legendary Member
- Posts: 1556
- Joined: Tue Aug 14, 2012 11:18 pm
- Thanked: 448 times
- Followed by:34 members
- GMAT Score:650
Are you sure that Statement 2 is correct?Malolo355 wrote:"If (sqrt)x is an integer, what is the value of (sqrt)x?
(1)5<x<15
(2)1<x<4 "
From st.1 : (sqrt)25 <(sqrt)x < (sqrt)225 and since (sqrt)x is an integer the possible value can only be (sqrt)81=9 SUFFICIENT
St.2 says that (sqrt)1 <(sqrt)x <(sqrt)16 so the possible values are 2 and 3 . So it's insufficient.
Am I right?
R A H U L
-
theCodeToGMAT
- Legendary Member
- Posts: 1556
- Joined: Tue Aug 14, 2012 11:18 pm
- Thanked: 448 times
- Followed by:34 members
- GMAT Score:650
Okay..Malolo355 wrote:I'm sorry. You're right.
I've missed a (sqrt).
St. 2 is " 1 <(sqrt)x < 4 "
.. Yes you are correct, answer must be [spoiler]{A}[/spoiler] only..
R A H U L
