Bunuel
The number of touchscreen personal organizers currently in stock is p times what it was at the beginning of the year. If the number of touchscreen organizers currently in stock is t and the number in stock at the beginning of the year is x (where t, x and p do not equal zero), are there more touchscreen personal organizers in stock now than there were at the beginning of the year?
(1) p > x
(2) tp > t
Ans: D
Solution: we know numbers x=number of TPO at the begining, t=TPO at the end of the year, p=multiplier
we also know that these numbers are integers and only p can be any value except zero. [t=p*x given]
1) p>x ; if p>x then t>x, because x is integer and non negative. as you cannot have -1 TPO. (I think) [Sufficient]
2) tp>t ; t(p-1)>0 ;
so now for this to be true,
t>0 & (p-1)>0 OR t<0 & (p-1)<0
as we know t>0 second condition does not follow and with first condition we know that P>1
so this statement alone is sufficient to ans the question. [Sufficient]
Ans. D [Both statement alone are sufficient to answer the question]