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Y and A Tutoring Paper 2 with Answers and Hints · Q17

Paper 2Logic & proof

The real numbers a,b,ca,b,c and dd satisfy 0<a<b<c<d0<a<b<c<d.

Which of the following inequalities must be true?

I a+c<b+da+c<b+d

II d−c>b−ad-c>b-a

III bc<da\frac bc<\frac da

Anone of them
BI only
CII only
DIII only
EI and III only
FI, II and III

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