For an ideal continuously running clock, what is the interval between two successive coincidences of the clock hands, in minutes?

Correct answer: Option C — 65 5/11 minutes. Applying the required separation over a 12-hour cycle gives the verified result 65 5/11 minutes. Option A (60 minutes) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error. Option B (62 5/11 minutes) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error. Option D (66 minutes) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error.