Is it C?
1 - not sufficient.
2 - not sufficient. We have 2 possibilities
a. t-r = t-(-s) implies r = -s
b. ----r----s----t---- -s ----
Using 1 we know choice b above is not possible. So, C
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jayhawk2001
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now, I agree that it's C - cause t&r = t&-s meaning that r=-s. So, if 0 is between s and -s, s and r must be so too.
Thank you for your help!
Thank you for your help!
