1. Jan 5, 1991 was a Saturday. What day of the week was on March 3, 1992?
  A.  Tuesday
  B.  Monday
  C.  Wednesday
  D.  Friday
     
   
View Answer

1991 is an ordinary year, hence it has only 1 odd day. Thus, Jan 5, 1992 was a day beyond Saturday, ie, Sunday.
Now, in Jan 1992 there are 26 days left, ie, 5 odd days.
In Feb 1992 there are 29 days, ie 1 odd day. In March 1992 there are 31 days, ie, 3 odd days. Total no. of odd days after Jan 5, 1992 = 5+1+3=9 days, ie, 2 odd days.
Therefore, 3 March 1992 will be 2 days beyond Sun- day, ie, Tuesday.

Other Method

Total no. of days between Jan 5, 1991 and March 3, 1992=360 days in 1991+(31+29+3) days in 1992 = 3 odd days.
Therefore, March 3, 1992 is three days beyond Satur- day, ie, Tuesday.


2. Monday falls on 4th April, 1988. What was the day on 3rd Nov 1987?
  A.  Monday
  B.  Tuesday
  C.  Wednesday
  D.  Friday
     
   
View Answer

No. of days between 3rd Nov. 1987 and 4th April 1988 = 27 (Nov)+31 (Dec)+31 (Jan)+29 (Feb)+31 (Mar) +4 (Apr) = 153 days=21 weeks +6 days = 6 odd days Then, 3rd Nov 1987 was 7 − 6 − 1 day beyond the day on 4th April, 1988. So, the day was Tuesday.
Note: 3rd Nov 1987 lies before 4th Apr 1988, hence the required day will be 6 days before Monday or 7 − 6 = 1 day beyond Monday.


3. Today is 21st August. The day of the week is Monday. This is a leap year. What will be the day of the week on this day after 3 years?
  A.  Friday
  B.  Tuesday
  C.  Thursday
  D.  Wednesday
     
   
View Answer

Since this is a leap year, none of the next 3 years is a leap year. So, the day of the week will be 3 days be yond Monday, ie, it will be Thursday.


4. It was Thursday on 2nd Jan 1993. What day of the week will be on 15th March 1993?
  A.  Sunday
  B.  Thursday
  C.  Saturday
  D.  Friday
     
   
View Answer

Total no. of days =29 (Jan) +28 (Feb) + 15 (Mar) = 72 days = 10 weeks + 2 days = 2 odd days.
Thus, the given date will fall on two days beyond Thursday, ie, Saturday.


5. On what date of August 1980 did Mondaty fall?
  A.  18th
  B.  19th
  C.  17th
  D.  15th
     
   
View Answer

First find the day on Ist August, 1980.
Ist August, 1980 means, '(1979 years + 7 months + 1 day)'.
Now 1600 years contain 0 odd day.
300 years contain 15 or 1 odd day.
19 leap years + 60 ordinary years = 38 + 60 or 98 or 0 odd day
Thus, 1979 years contain 0 + l + 0 = l odd day.
Number of days from Jan, 1980 upto Ist Aug, 1980
Jan Feb March April May June July Aug 31 + 29 + 31 + 30 + 31 + 30 + 31 + 1 = 214 days = 30 weeks + 4 days = 4 odd days.
Total number of odd days = 1 + 4 = 5
So, on Ist Aug, 1980, it was 'Friday'
So, 1st Monday in August, 1980 lies on 4th August.
∴ Monday falls on 4th, 11th, 18th, & 25th in August 1980.


6. January 1, 1992 was a Wednesday. What day of the week will it be on January 1, 1993?
  A.  Thursday
  B.  Saturday
  C.  Wednesday
  D.  Friday
     
   
View Answer

1992 being a leap year, it has 2 odd days So the first day of the year.
1993 will be two days beyond Wednesday, i.e it will be Friday.


7. On January 12, 1980, it was Saturday. The day of the week on January 12, 1979 was:
  A.  Friday
  B.  Saturday
  C.  Sunday
  D.  Thursday
     
   
View Answer

The year 1979 being an ordinary yeat, it has 1 odd day.
So, the day on 12th January 1980 is one day beyond the day on 12th January, 1979.
But, January 12, 1980 being Saturday
∴ January 12, 1979 was Friday.


8. On July 2, 1985, it was Wednesday. The day of the week on July 2, 1984 was:
  A.  Monday
  B.  Sunday
  C.  Tuesday
  D.  Thursday
     
   
View Answer

The year 1984 being a leap year, it has 2 odd days.
So, the day on 2nd July, 1985 is two days beyond the day on 2nd July, 1984.
But, 2nd July 1985 was Wednesday.
∴ 2nd July, 1984 was Monday.


9. Monday falls on 4th April, 1988. What was the day on 3rd November, 1987?
  A.  Wednesday
  B.  Tuesday
  C.  Thursday
  D.  monday
     
   
View Answer

Counting the number of days after 3rd November, 1987 we have: Month Nov Dec Jan Feb March April
days 27 + 31 + 31 + 29 + 31 + 4
= 153 days containing 6 odd days
ie, (7 − 6)= 1 day beyond the day on 4th April 1988. So, the day was Tuesday.


10. Today is 1st August. The day of the week is Monday. This is a leap year. The day ofa the week on this day after 3 years will be:
  A.  Wednesday
  B.  Friday
  C.  Saturday
  D.  Thursday
     
   
View Answer

This being a leap year none of the : next 3 years is a leap year. So, the day of the week will be 3 days beyond Monday ie, it will be Thursday.


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