Which one of the following could be an accurate matching of the types of bonds to the corporations that offer them?

Bola on September 7 at 11:10AM

JUNE 2018, S4 4TH GAME SET UP

Hello, I do not understand this game set up. The game says each corporation offer either or both ( Contrapositive of Rule 2 says if S is not in 5 or 10; will this not be violating the rules that each of the corporation must offer either or both) I do not understand the deductions made from contrapositives of rule 3. Why can we not deduce that if R is not in 10 then R must be in 5 since the game says each corporation offer either or both

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Emil-Kunkin on September 7 at 09:25PM

Hi, I think that the contrapositive of rule two is a little different from what you articulated. I think it would be that if S is not in both of them, (that is it's only on one) then v cannot offer 5. From this I think we would know that v would this have to offer 10.

From rule 3 I think we can safely say that if r isn't in ten then r is in 5. That said, I think the video didn't want to call that a deduction because that only applies to R. Either way you are in fact correct about the third rule.