Q. Find the angle between the hands of clock at 8 : 20.
✅ Correct Answer: (A)
130°
Explanation: Angle traced by hour hand per minute = (1/2)o
∴Angle traced by hour hand in 8h 20 min = ( 8 x 60 + 20) × 1/2
= 250°
Again, angle traced by minute hand per minute = 6°
∴ again traced by minute hand in 20 min = 20 × 6°
= 120°
Therefore required angle = (250° - 120°) = 130°
Explanation by: Tina Singh
Angle traced by hour hand per minute = (1/2)o
∴Angle traced by hour hand in 8h 20 min = ( 8 x 60 + 20) × 1/2
= 250°
Again, angle traced by minute hand per minute = 6°
∴ again traced by minute hand in 20 min = 20 × 6°
= 120°
Therefore required angle = (250° - 120°) = 130°
∴Angle traced by hour hand in 8h 20 min = ( 8 x 60 + 20) × 1/2
= 250°
Again, angle traced by minute hand per minute = 6°
∴ again traced by minute hand in 20 min = 20 × 6°
= 120°
Therefore required angle = (250° - 120°) = 130°