Georgia is older than her cousin Marsha. Marsha's brother Bart is older than Georgia. When Marsha and Bart are visiting with Georgia, all three like to play a game of Monopoly. Marsha wins more often than Georgia does.

Given data

• Georgia is older than her cousin Marsha.
• Marsha's brother Bart is older than Georgia.
• They play Monopoly together; Marsha wins more often than Georgia.

Concept/Approach

Order the ages using the inequalities; ignore performance at games except where relevant.

Step-by-step reasoning
From 'Bart older than Georgia' and 'Georgia older than Marsha': Bart > Georgia > Marsha.Therefore, the youngest is Marsha.Game outcomes do not indicate Bart's results (A) or Georgia's feelings (C).

Verification/Alternative

Transitive ordering gives a unique youngest (Marsha) and a unique oldest (Bart), contradicting (B).

Common pitfalls

• Confusing game skill with age order.

Final Answer
Of the three, Marsha is the youngest.