What will be the angle between the hands of clock at 7 : 10?

angle traced by hour hand per minute = (1/2)° ∴ angled traced by hour hand in 8 h 30 min =[(8×60)+30x1/2]° = [480+30×1/2]o°= 510 × (1/2)° = 255° ∴ Angle traced by minute hand per minute = 6° ∴ Angle traced by minute hand in 30 min = 30 × 6° = 180° ∴ required angle = (255° - 180°) = 75°