The heights of four students are 148.5 centimeters, 146.9 centimeters, 148.2 centimeters, and 148.75 centimeters. Kylie is the tallest. Elly is taller than Jessica, but shorter than Elizabeth. Jessica is the shortest. What is Elizabeth’s height?

Elizabeth’s height is 148.5 centimeters.

If Kylie is the tallest, she would be 148.75.
That leaves the other three heights.
Elly is taller than Jessica, which means that she could either be the second or third tallest. Then it is revealed that Elly is also shorter than Elizabeth, meaning that she must be the third tallest, meaning Ellys height would be 148.2.
Jessica is the shortest, at 146.9.

That leaves one height, 148.5, which is Elizabeth’s.