I think you are looking at the wrong chart. E(HI) 4 does have a VOR/DME Zurich East at 4735.5N 00849.1E with frequency 110.05. However, E(HI) 4 'CAA FOR CPL/ATPL EXAMINATIONS' has a different frequency at the same location 115.0. That would make the book answer correct. This is typical of CAA examination questions.
Navoff