What is the angle subtended by minute hand of a clock at its centre when it runs from 10:10 am to 10:30 am?A60°B120°C90°D20°Answer: B. 120° Read Explanation: 10 : 10 to 10 : 30 = 20 minute 1 minute = 6° 20 minute = 20 x 6 = 120°Read more in App