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Logical Puzzles Expert 2 min

Seven runners finish a race. A finishes before B. B finishes before C. D finishes after C. E finishes before A. F finishes after D. G finishes before E. Who must finish before everyone else?

Hint
Create the complete ordering chain.

Answer

G.

Explanation

The conditions give G < E < A < B < C < D < F. Therefore G must finish first.

Step-by-Step Solution

G before E.
E before A.
A before B.
B before C.
C before D.
D before F.
Therefore G is first.
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