CALENDER

    Day Codes:-

    Sat = 0
    Sun = 1
    Mon = 2
    Tue = 3
    Wed = 4
    Thu = 5
    Fri = 6

    Month Codes:-

    Jan = 1
    Feb = 4
    Mar = 4
    Apr = 0
    May = 2
    Jun = 5
    Jul = 0
    Aug = 3
    Sep = 6
    Oct = 1
    Nov = 4
    Dec = 6

    Century Codes:-

    1500 - 1599 ---> 0
    1600 - 1699 ---> 6
    1700 - 1799 ---> 4
    1800 - 1899 ---> 2
    1900 - 1999 ---> 0
    2000 - 2099 ---> 6
    2100 - 2199 ---> 4
    2200 - 2299 ---> 2
    2300 - 2399 ---> 0

  1. What was the day of the week on 24th July 2011?

    A.) Monday B.) Sunday
    C.) Friday D.) None of these
    Answer: Option 'B'

    Formula:-(Date + Month code + No.of years + No.of leap year + Century code)/7

    = (24 + 0 + 11 + 2 + 6)/7 = 43/7 = 1

    = Sunday


  2. What was day of the week on 21-September-1987?

    A.) Sunday B.) Monday
    C.) Friday D.) Saturday
    Answer: Option 'B'

    Formula:-(Date + Month code + No.of years + No.of leap year + Century code)/7

    = (21 + 6 + 87 + 21 + 0)/7 = 135/7 = 2

    = Monday


  3. What was the day of the week on 26-January-1950?

    A.) Sunday B.) Monday
    C.) Wednesday D.) Thursday
    Answer: Option 'D'

    Formula:-(Date + Month code + No.of years + No.of leap year + Century code)/7

    = (26 + 1 + 50 + 12 + 0)/7 = 84/7 = 5

    = Thursday


  4. Today is Monday, after 61 days, the day will be:

    A.) Wednesday B.) Saturday
    C.) Tuesday D.) Thursday
    Answer: Option 'B'

    Each day of the week is repeated after 7 days.

    So, after 63 days, it will be Monday.

    After 61 days, it will be saturday.


  5. Which of the following is not a leap year?

    A.) 700 B.) 800
    C.) 1200 D.) 2000
    Answer: Option 'A'

    The century divisible by 400 is a leap year.

    The tear 700 is not a leap year


  6. 6.   Today is Friday, after 126 days, it will be:

    A.) Sunday B.) Tuesday
    C.) Friday D.) Monday
    Answer: Option 'C'

    126/7 = 0

    Each day of the week is repeated after 7 days.

    So, after 126 days, it will be Friday.

    After 126 days, it will be Friday.


  7. 7.   How many days are there in x weeks X days?

    A.) 7x² B.) 8x
    C.) 14x D.) 7
    Answer: Option 'B'

    x weeks x days = (7x + x) days = 8x days


  8. 8.    It was Sunday on January-1-2006. Find the day of the week on January-1-2010?

    A.) Sunday B.) Saturday
    C.) Friday D.) Wednesday
    Answer: Option 'C'

    On 31st December, 2005 it was Saturday.

    Number of odd days from the year 200 to the tear 2009 = ( 1 + 1 + 2 + 1 ) = 5days

    On 31st December 2009, it was Thursday.

    Thus, on 1st Jan, 2010 it is Friday.


  9. 9.    What was the day of the week on 7th October, 2003?

    A.) Sunday B.) Saturday
    C.) Friday D.) Wednesday
    Answer: Option 'B'

    Formula = ( Date + Monthcode + No.of years + No.of leapyears + Century code )/ 7

    ==> (7 + 1 + 3 + 0 + 6)/7 = 17/7 = 3

    ==> Tuesday


  10. 10.    On 2007, What was the date of last Saturday in May month?

    A.) 21 B.) 22
    C.) 25 D.) 26
    Answer: Option 'D'

    1 - May - 2007

    =(1 + 2 + 7 + 1 + 6)/7 = 17/7 = 3 = Tuesday

    = May 1st --> Tuesday + 5 days = Saturday = 5th may

             5th may + 7 days = Saturday = 12th may
        12th may + 7 days = Saturday = 19th may
        19th may + 7 days = Saturday = 26th may
            = Answer = 26th may


  11. 11.   What was the day of the week on 10th March 1996?

    A.) Sunday B.) Tuesday
    C.) Saturday D.) Wednesday
    Answer: Option 'A'

    (10 + 4 + 96 + 24 + 0)/7 = 134/7 = 1
    = Sunday


  12. 12.   On 8th February 2005, it was Tuesday. What was the day of the week on 8 February 2004?

    A.) Tuesday B.) Monday
    C.) Sunday D.) Wednesday
    Answer: Option 'C'

    The year 2004 is a leap year. It has 2 odd days.
    The day on 8th Feb, 2004 is 2 days before the day on 8th Feb, 2005
    Hence, this day is Sunday.


  13. 13.   What was the day of the week on 17th June, 1998

    A.) Tuesday B.) Monday
    C.) Sunday D.) Wednesday
    Answer: Option 'D'

    17th June, 1998 = (1997 years + Period from 1.1.1998 to 17.6.1998)

    Odd days in 1600 years = 0

    Odd days in 300 years = (5 × 3) = 1

    97 years has 24 leap years + 73 ordinary years.

    Number of odd days in 97 years = (24 × 2 + 73) = 121 = 2 odd days

    Jan Feb March April May June

    31 + 28 + 31 + 30 + 31 + 17 = 168 days = 24 weeks = 0 odd day

    Total number of odd days = (0 + 1 + 2 + 0) = 3

    Given day is Wednesday


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