Goldman Sachs DeckHard

Classic brainteaser: what is the angle between the hands of a clock at 3:15?

Model answer

7.5 degrees. The minute hand at 15 minutes points at the 3, which is 90 degrees from 12. The hour hand moves 30 degrees per hour, and at 3:15 it has traveled 3.25 hours x 30 = 97.5 degrees — the trap…

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