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 and a total 29 nights shift has worked by miller. 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?

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 and a total 29 nights shift has worked by miller. 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? Correct Answer Nine

Given data :

1) Nurse Kemp has worked more night shifts in a row than Nurse Rogers, who has worked five. (Let's nurse Kemp has worked x night shifts)

Kemp (x) > Rogers(5)

2) Nurse Miller has worked fifteen night shifts in a row, more than Nurses Kemp and Rogers combined and a total 29 nights shift has worked by miller.

Miller total night shift = (Kemp's night shift + Roger's night shift + 15)  = x + 5 + 15 

                              29 = x + 20 

Kemp's night shift(x) = 9 

3) Nurse Calvin has worked eight night shifts in a row, less than Nurse Kemp = Kemp's night shift(x) - 8 = 9 - 8 = 1

Miller(29) > Kemp(9) > Rogers(5) > Calvin(1)

Hence, '9' is the correct answer.

NOTE: The question has been modified as it was erroneous.