Mock Test Logic Problems Logic and Reasoning Problems Set E

Here is yet another set of logic questions. The logic problems in this set are somewhat more complex than the ones in the previous sets, but your approach should be the same.Make a chart or grid so that you can order the given information.
Nurse Kemp has worked more night shifts in a row than Nurse Rogers, who has worked five. Nurse Miller has worked fifteen night shifts in a row, more than Nurses Kemp and Rogers combined. Nurse Calvin has worked eight night shifts in a row, less than Nurse Kemp. How many night shifts in a row has Nurse Kemp worked?