DS princeton review drill 11

[ifthyder]

ds yes no answer question from princeton review ds drill 11

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If x is a positive number, is x < 1?

(1) 2x < 1
(2) 2x £ 2

its answer is A

its gives yes when we plug values less than 1/2 but what if we plug values like 4/5 which is .8 or 3/5 which is .6 it gives no answer so princeton review called statement 1 sufficient despite of the fact it gives sometime positive and sometime negative value.
somebody put more light on it how is that possible ?

[sudhir3127]

ds yes no answer question from princeton review ds drill 11

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If x is a positive number, is x < 1?

(1) 2x < 1
(2) 2x £ 2

its answer is A

its gives yes when we plug values less than 1/2 but what if we plug values like 4/5 which is .8 or 3/5 which is .6 it gives no answer so princeton review called statement 1 sufficient despite of the fact it gives sometime positive and sometime negative value.
somebody put more light on it how is that possible ?

I go with A as well.. Not sure what does the "pound" symbol means in the second statement... but in the first stament ...

if we re write the statement "2x < 1" it will
X<1/2 .. which is enuf to answer the question that X<1.

u dont have to key in the numbers... i hope it helps..