Source:- Manhattan Lab # 2 - Data sufficency - Yes / No testing LAB
Question Number 206. I belive this is an OG number.
Question:-
[question deleted because it is an OG question]
Statement 1 is in Insufficient because we don’t know if x is a positive or negative. If x is positive fraction ½ than statement one is sufficient but if x is negative - ½ than it will not work because when squared it will return a positive answer. Statement Insufficient
Statement two is insufficient because we don’t know what is the value of x it can be a fraction or not a fraction.
When we combine both statements we know from statement two that x is positive and statement one tells us it is a fraction. Sufficient. I think "C" is the correct answer.
On the LAB correct answer was marked as "A". Can someone explain.