Clocks and Calendars


  1. The number of times in a day the hour hand and the minute hand of a clock are at right angles, is ?









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    In every hour the hand of clock are right angles 2 times.

    Correct Option: B

    In every hour the hand of clock are right angles 2 times, so in a days i.e., 24 h they will be at right angle 48 times.


  1. If the first day of June is Saturday, them the date on which the last Saturday of that month falls, is ?









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    If the first Saturday of June is in lst. Then, next Saturday will be on 8th, 15th , 22nd and 29th.

    Correct Option: C

    If the first Saturday of June is in lst. Then, next Saturday will be on 8th, 15th , 22nd and 29th. So , last Saturday will be on 29th.



  1. At what time between 1 and 2 O' clock are the hands of a clock together ?









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    At 1 O' clock the the hour hand is at 1 and the minute hand is at 12.
    Thus, they are 5 min spaces apart.
    To be together, the minute hand must gain 5 min over the hour hand .

    Correct Option: A

    At 1 O' clock the the hour hand is at 1 and the minute hand is at 12.
    Thus, they are 5 min spaces apart.
    To be together, the minute hand must gain 5 min over the hour hand .
    55 min are gained by minute hand in 60 min.
    5 min will be gained by it in = (60/55 x 5 ) = 60/11 = 55/11 min
    Hence, the hands will coincide at 55/11 min past 1 .


  1. How much does a watch lose per day , if its hands coincide every 64 min ?









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    Normally, hands of a watch coincide after 655/11 min.

    Correct Option: C

    Normally, hands of a watch coincide after 655/11 min.
    So, loss per hour = 15/11 min
    ∴ Loss per day = 24 x 15/11 = 24 x 16/11
    = 3410/11 min



  1. The last day of year, 2006 was ?









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    Last two digits of year : 06
    Divided by 4 :01
    Date: 31 (last day will be 31st Dec)
    Month code : 6
    Final value : 44
    On dividing by 7, we get 2 as remainder. As year is between 2000 - 2099, so 1 has to be subtracted, now the result
    = 2 - 1 = 1
    1 is the day code for Sunday.

    Correct Option: B

    Last two digits of year : 06
    Divided by 4 :01
    Date: 31 (last day will be 31st Dec)
    Month code : 6
    Final value : 44
    On dividing by 7, we get 2 as remainder. As year is between 2000 - 2099, so 1 has to be subtracted, now the result
    = 2 - 1 = 1
    1 is the day code for Sunday.