5 people (Dev, Elena, Isla, Leah, Rhys) are ranked from tallest to shortest. Dev is immediately taller than Isla. Isla is taller than Rhys. Leah is taller than Dev. Isla is immediately taller than Elena. Rhys is the shortest. Who is the third tallest?

Answer and explanation

Correct answer: A. Isla

  1. Step 1: Combine the clues into one ordering until only one arrangement fits. Step 2. The only consistent order, from tallest to shortest, is Leah, Dev, Isla, Elena, Rhys, so the third tallest is Isla. Answer: Isla. Why not the others: Dev is actually second; Leah is actually first; Elena is actually fourth.

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