Question
What was the day of the week on 30th June 1980?
Answer: Option C
Answer: (c)
30th June 1980 means 1979 complete years + 6 months of 1980
Number of odd days in 1600 yrs = 0
Number of odd days in 300 yrs = 1
Number of odd days in 79 yrs = (19 leap yrs + 60 ordinary years)
= 19 × 2 + 60 × 1 = 38 + 60 = 98
⇒ o odd days
January
3
February
1
March
3
April
2
May
3
June
2
Number of odd days in 1980 = 3 + 1 + 3 + 2 + 3 + 2 = 14
⇒ 0 odd days
Total number of odd days till 30th June, 1980 = 0 + 1 + 0 + 0 = 1
So, the required day was Monday.
Was this answer helpful ?
Answer: (c)
30th June 1980 means 1979 complete years + 6 months of 1980
Number of odd days in 1600 yrs = 0
Number of odd days in 300 yrs = 1
Number of odd days in 79 yrs = (19 leap yrs + 60 ordinary years)
= 19 × 2 + 60 × 1 = 38 + 60 = 98
⇒ o odd days
January
3
February
1
March
3
April
2
May
3
June
2
Number of odd days in 1980 = 3 + 1 + 3 + 2 + 3 + 2 = 14
⇒ 0 odd days
Total number of odd days till 30th June, 1980 = 0 + 1 + 0 + 0 = 1
So, the required day was Monday.
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
1 Comments
Submit Solution