This is probably, really simple, but I can't wrap my head around it.
#83, page 72: on the OG math workbook
If u > t, r > q, s > t, and t > r, which of the following must be true?
I u > s
II. s > q
III u > r.
case II and III, are straight forward and easy.
I drew the number line it looks like this:
Q------------r-----------t-------------u----------
The question is: where is 's' placed? between 't' and 'u,' or just in front of 'u'?
case I explanation tells me to draw the line, and plug in some arbitrary numbers. they pick, t = 2, u = 3, and s = 4, therefore it's obvious that u is not greater than s.
How did they come up with these numbers? what if I pick t = 2 u = 5, and s = 4? then U > S, and still follows all the premises...right?
What am I missing here?
math question. number properties
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The OG explanations are not great. This is the opinion of almost everyone
Coming to this problem:
I would write the inequalities as follows:
u>t r>q s>t t>r
It follows:
u>r t>q
u>q s>q
In must be true questiona statement that has to be true for all sets of values so if u can prove something is not true for 1 set of values then it is not part of the answer choice
Stmt I u>s may or may not be true.
The other question type is could be true -> This means if u can prove a statement is true for 1 set of values based on problem constraints if any then that statement will be part of you answer choice
Stmt II and III must be true
I dont understand how the OG says (not sure if it does) that I also must be true (may be I am also missing something- also u,t,r,q does not even have to be intgers if they are not given to be integers)
Is it OG 11 th edition or OG 10th edition?
Coming to this problem:
I would write the inequalities as follows:
u>t r>q s>t t>r
It follows:
u>r t>q
u>q s>q
In must be true questiona statement that has to be true for all sets of values so if u can prove something is not true for 1 set of values then it is not part of the answer choice
Stmt I u>s may or may not be true.
The other question type is could be true -> This means if u can prove a statement is true for 1 set of values based on problem constraints if any then that statement will be part of you answer choice
Stmt II and III must be true
I dont understand how the OG says (not sure if it does) that I also must be true (may be I am also missing something- also u,t,r,q does not even have to be intgers if they are not given to be integers)
Is it OG 11 th edition or OG 10th edition?