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An accurate clock shows 8 O’ clock in the morning. Through how many degrees will the hours hand rotate when the clock shows 2 O’ clock in the afternoon? एक सटीक घड़ी सुबह में 8 बजे का समय दिखाती है। दोपहर में घड़ी जब 2 बजे का समय दिखाती है तो घंटे का कांटा कितने डिग्री घूमेगा? |

A) 144
^{o}B) 150
^{o}C) 168
^{o}D) 180
^{o}Correct Answer :180 Explanation :As given the hour hand going from 8 clock in the morning to 2 clock in the afternoon is equal to 6 hours of passed time. |

How many times are the hands of a clock at right angles in a day? एक घड़ी के कांटे एक दिन में कितनी बार समकोण पर होते है? |

A) 22
B) 44
C) 24
D) 48
Correct Answer :44 Explanation :In 12 hours, they are at right angles 22 times. |

What will be the angle between the hands of a clock at 3:30 O’clock? 3:30 बजे घड़ी की सुइयों के बीच का कोण क्या होगा? |

A) 90
^{o}B) 75
^{o}C) 135
^{o}D) 60
^{o}Correct Answer :75 Explanation :The hour hand of a normal 12-hour analogue clock turns 360° in 12 hours (720 minutes) or 0.5° per minute. The minute hand rotates through 360° in 60 minutes or 6° per minute. The angle traced of the hour hand = 0.5 * (60*H + M)° The angle of the minute hand = 6°*M The angle between the hands= |Angle of hour hand - Angle of minute hand| |

A clock is started at 6 O' clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 11 O' clock in the morning ? सुबह 6 बजे घड़ी एक घड़ी शुरू होती है। जब घड़ी सुबह 11 बजे दिखाती है तो घंटे का कांटा कितने डिग्री घूमेगा । |

A) 140°
B) 180°
C) 150°
D) 160°
Correct Answer :150° Explanation :From 6 to 11, there are 5 hours. Or The angle traced of the hour hand = 0.5 * (60*H + M)° |