Clock and calender


  1. How many Sundays will be in a period of 100 years.









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    In a period of 100 years there are 23 or 24 leap years (as for century year it might be or might not be a leap year, as 1900 was not a leap year)
    Number of days in a period of 100 years is 365 x 100 + 23 or 365 x 100 + 24.
    If century year is not a leap year then number of days = 365 x 100 + 23, and number of weeks is 5217 and 4 odd and for leap year it will be 5217 weeks and 5 odd days, hence number of Sundays is either 5217 or 5218.

    Correct Option: C

    In a period of 100 years there are 23 or 24 leap years (as for century year it might be or might not be a leap year, as 1900 was not a leap year)
    Number of days in a period of 100 years is 365 x 100 + 23 or 365 x 100 + 24.
    If century year is not a leap year then number of days = 365 x 100 + 23, and number of weeks is 5217 and 4 odd and for leap year it will be 5217 weeks and 5 odd days, hence number of Sundays is either 5217 or 5218.


  1. The last day of century cannot be either
    I. Tuesday
    II. Thursday
    III. Saturday
    IV. Sunday









  1. View Hint View Answer Discuss in Forum

    The last day of century cannot be either Tuesday, Thursday or Saturday.

    Correct Option: C

    The last day of century cannot be either Tuesday, Thursday or Saturday.



  1. How many times in a day (24 Hrs), are the hands of a clock in straight line but opposite in direction ?









  1. View Hint View Answer Discuss in Forum

    The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours.
    (Because between 5 and 7 they point in opposite direction at 6 'o clock only). So, in a day, the hands point in the opposite direction 22 times.

    Correct Option: B

    The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours.
    (Because between 5 and 7 they point in opposite direction at 6 'o clock only). So, in a day, the hands point in the opposite direction 22 times.


Direction: Study the following information carefully to answer the questions given below it.

  1. In a month of 31 days, third Thursday falls on 16th. What will be the last day of the month?









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    Friday will fall on 3, 10, 17, 24, 31
    So, it will be 5th Friday on 31 st

    Correct Option: A

    Friday will fall on 3, 10, 17, 24, 31
    So, it will be 5th Friday on 31 st



  1. If it was Saturday on December 17, 1899, what will be the day on December 22,1901?









  1. View Hint View Answer Discuss in Forum

    Total number of odd days from December 17, 1899 to December 22, 1901
    14 + 356 + 356 = 735
    or, 735/7 = 105
    = 0 odd days
    it was Saturday on December 17, 1899.

    Correct Option: B

    Total number of odd days from December 17, 1899 to December 22, 1901
    14 + 356 + 356 = 735
    or, 735/7 = 105
    = 0 odd days
    it was Saturday on December 17, 1899.
    So, it will be Saturday on December 22, 1901.