Aptitude - Calendar - Discussion
Discussion Forum : Calendar - General Questions (Q.No. 4)
4.
What will be the day of the week 15th August, 2010?
Answer: Option
Explanation:
15th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010)
Odd days in 1600 years = 0
Odd days in 400 years = 0
9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 odd days 
4 odd days.
Jan. Feb. March April May June July Aug. (31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days
227 days = (32 weeks + 3 days) 3 odd days.
Total number of odd days = (0 + 0 + 4 + 3) = 7 0 odd days.
Given day is Sunday.
Discussion:
95 comments Page 3 of 10.
Sikandar said:
8 years ago
Why are we taking 1600 or 400?
How do we know what is the year code?
What is the basis of codes?
How are the codes arrived at?
Is there any formula or reasoning for arriving at the different codes for the Months, Days and a particularly century?
How do we know what is the year code?
What is the basis of codes?
How are the codes arrived at?
Is there any formula or reasoning for arriving at the different codes for the Months, Days and a particularly century?
Saikumar said:
10 years ago
1600 = 0 odd days.
400 years = 0 odd days.
15 years will be remained.
15 year will have (3 leap years + 12 ordinary years).
= (3*2+1*12) = (6+12) = 18 = 7+7+4 = 4 odd days.
8 = 1 week+1 day.
(0+0+4+1) = 5 days = Friday.
400 years = 0 odd days.
15 years will be remained.
15 year will have (3 leap years + 12 ordinary years).
= (3*2+1*12) = (6+12) = 18 = 7+7+4 = 4 odd days.
8 = 1 week+1 day.
(0+0+4+1) = 5 days = Friday.
Krishnachaitu said:
1 decade ago
1 year means 365 days it has one odd day after divide with 7 so if this year starts with Sunday then next year starts with Monday but if this year is leap year that means a multiple of 4 then next year starts with Tuesday.
Aditya said:
5 years ago
We can get a number of odd days in 9years by dividing 9 by 4 as in every 4 years there is a leap year. The quotient is the number of leap years and rest is ordinary years so,
9years = 2leap years + 7ordinary years.
9years = 2leap years + 7ordinary years.
Sudhakar said:
1 decade ago
@vishnu : those 4 days are the result of 11days(divide these 11days into weeks and days, so u get 7+4,here 7days makes a week and do count those 4 extra days.) so finally we get 4ODD DAYS..
Krishna chaitu said:
1 decade ago
Let me make it clear 0 means Sunday 1 means Monday 2 means Tuesday 3 means Wednesday 4 means Thursday 5 means Friday 6 means Saturday 7 means 0 in terms of odd days.
Sundar said:
1 decade ago
@John
You can find the answer for your question in this page.
http://www.indiabix.com/aptitude/calendar/discussion-638
Hope this help you. Have a nice day!
You can find the answer for your question in this page.
http://www.indiabix.com/aptitude/calendar/discussion-638
Hope this help you. Have a nice day!
Aayush said:
4 years ago
Why Everyone is saying"As Odd days = 0 day is Sunday".
The odd day is Zero from 1 Jan- Monday.
So isn't the answer should be Monday? Please clarify this.
The odd day is Zero from 1 Jan- Monday.
So isn't the answer should be Monday? Please clarify this.
(10)
Biswas said:
7 years ago
@All.
It is simple, zero refers to Sunday in calendar rule, Monday = 1, same as if the total number of odd days is 6 it's your Saturday.
It is simple, zero refers to Sunday in calendar rule, Monday = 1, same as if the total number of odd days is 6 it's your Saturday.
Priya said:
8 years ago
@Poonam.
1600 & 400 are reference years with which we calculate the solution. As they leave 0 odd days. So we can calculate fresh.
1600 & 400 are reference years with which we calculate the solution. As they leave 0 odd days. So we can calculate fresh.
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