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Nurse Kemp has worked more night shifts in a row than Nurse Rogers, who has worked five.

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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?

Choose one option.
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Answer: B. B) Nine

Rogers = 5. Miller = 15 > Kemp + Rogers => Kemp < 10. Calvin = 8 < Kemp => Kemp > 8. Since 8 < Kemp < 10, Nurse Kemp has worked 9 night shifts.

Step-by-step Derivation:
Step 1: Rogers = 5.
Step 2: Miller = 15 > Kemp + 5 => Kemp < 10.
Step 3: Calvin = 8 < Kemp => Kemp > 8.
Step 4: Since Kemp must be an integer: 8 < Kemp < 10 => Kemp = 9.