If x and y are positive, is 4x>3y?
1. x>y-x
2. x/y<1
I get how the two statements alone are not sufficient but how about together??
this is what i did so far:
1. x>y-x becomes 2x>y some values that satisfy this are x=1, y=1....x=2, y=3.... x=3, y =5
putting these values in 4x>3y gives true/false statements....2>1 yes......8>9...no..12>15..no
so insufficient
2. since x, >0 x/y <1 becomes x<y
values of x,y that satisfy this are...4,2...6,1...3,4
putting these in 4x>3y
we get Y/N statements agn.....16>6 yes.....24>3 yes.....12>12...no
so insufficient
BUT together...i'm not sure how to combine the two statements:
2x>y & x<y to see if 4x> 3y
What do i do??? It would take me forever to find values to satisfy both stat 1 & 2 and then to check if any of the values give a consistent answer for 4x>3y. Is there a shortcut that i'm missing?????
Also another issue related to this i have is that i never know which "trial" values to pick. I tend to start with small positive no.s then i try higher positive no.s then if the question allows i'll plug in negative values or fractions.
my question is how do i speed up this process? any tips on plug-in values would be greatly appreciated! thanks
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