Aptitude - Calendar - Discussion

Discussion Forum : Calendar - General Questions (Q.No. 4)
4.
What will be the day of the week 15th August, 2010?
Sunday
Monday
Tuesday
Friday
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 7 of 10.

Naresh said:   9 years ago
If the remainder gets 1 then what is the week?

0 = sun
1 = Monday
2 = Tuesday
So on

Am I correct?

Gokila said:   9 years ago
7/7= 0 remaider.
So, 7 ,14, 21, 28, 35 = have been considered as Sunday.

Pavan said:   8 years ago
We have an easy method......
Follow this if you feel it simple :)
This is a easy code technique.

Year cheat code, Month cheat code and date cheat code are the three types.
YEAR CHEAT CODE
1600 to 1699 = 6
1700 to 1799 = 4
1800 to 1899 = 2
1900 to 1999 = 0
2000 to 2010 = 6
MONTH CHEAT CODE
Jan = 0
Feb = 3
Mar = 3
Apr = 6
May = 1
Jun = 4
Jul = 6
Aug = 2
Sep = 5
Oct = 0
Nov = 3
Dec = 5
DAY CHEAT CODE
Sunday = 0
Monday = 1
Tuesday = 2
Wednesday = 3
Thursday = 4
Friday = 5
Saturday = 6
Now lets take an example....
11/03/1997 which is my birthday
Step 1 : Take last two digits of the year = 97
Step 2 : Take the date = 11
Step 3 : Divide 97 by 4 and take the quotient = 24
Step 4 : Take the year cheat code = 0 (For the range 1900 to 1997)
Step 5 : Take the Month cheat code = 03
Now add all the results
97+11+24+00+03 = 135.

Divide the answer by 7 and consider the remainder = 2 (Subract 1 from this in case of leap year).

Which is the Cheat code for Tuesday, therefore the answer is Tuesday.

Jagadish said:   8 years ago
How can I find 40 years & how many odd days?

Narayan said:   8 years ago
Odd days in 400 years=0? I can't understand it. Please help me.

Lakshmi said:   8 years ago
Why we take 1600 and 400 explain in detail?

Rama devi said:   8 years ago
15/8/2010.
15+10+2+2+6/7 =35.
7 )35(5
35
-

It's reminder. 0.
So,
Ans Is Saturday.

Shagufta said:   8 years ago
How here are 2 leap year taken from 2000 to 2010?

I think there are 3 leap year.
1. 2000
2. 2004
3. 2008

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?

Poonam said:   8 years ago
Please tell me why always take 1600 and 400?


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