Given the information provided, it is not possible to definitively determine the tallest person among Jack, Jill, Tom, Sarah, and Mike. The text only establishes the following height relationships: 1. Jack is shorter than Jill. 2. Jill is taller than Tom but shorter than Sarah. 3. Mike is the same height as Jack. From these comparisons, we can infer that: - Sarah > Jill > Tom - Mike = Jack and Jack < Jill However, we don't have any information comparing Sarah's or Jill's height with Jack or Mike directly. Therefore, without additional comparisons between Sarah, Jill, Mike, and Jack, we cannot establish the tallest person based solely on the text provided.