Logic puzzles

 

Assessment started: undefined.

Item 1

In a toy store, there are 4$4$ dolls of different heights A, B, C$A,B,C$, and D$D$.

D$D$ is neither as tall as A$A$ nor as short as C$C$.

B$B$ is shorter than D$D$ but taller than C$C$.

If Kelly wants to purchase the tallest doll, which one should she purchase?

• A$A$
• B$B$
• C$C$
• D
• Solution

  D$D$ is not as tall as A$A$, which means D$D$ is shorter than A$A$, So D<A$D<A$.
  D$D$ is not as short as C$C$, D$D$ is taller than C$C$, So D>C$D>C$.
  B$B$ is shorter than D$D$ but taller than C$C$. So we get, C<B<D$C<B<D$.

  So A$A$ is the tallest.