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What is the smaller angle between the hour and minute hands at 11:54?

Answer and explanation

Correct answer: 33°

The governing concept is the clock-angle method. The minute hand moves 6° per minute, while the hour hand moves 30° per hour, or 0.5° per minute. At 54 minutes, the minute hand is 54 × 6 = 324° from 12 o’clock. At 11:54, the hour hand is 11 × 30 + 54 × 0.5 = 330 + 27 = 357° from 12. Their difference is |357 − 324| = 33°. Since 33° is already less than 180°, it is the smaller angle. Therefore option C is correct. Treating the hour hand as fixed at 11 would give 30° and explains a tempting distractor, but the hour hand continues moving between hour marks.

Related tags

Clock-AngleAnglesDegree-MeasureAngular-MotionTrigonometric FunctionsMathematicsClass 12 Mcq

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