Aptitude - Calendar - Discussion
Discussion Forum : Calendar - General Questions (Q.No. 6)
6.
If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?
Answer: Option
Explanation:
The year 2004 is a leap year. So, it has 2 odd days.
But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only.
The day on 6th March, 2005 will be 1 day beyond the day on 6th March, 2004.
Given that, 6th March, 2005 is Monday.
6th March, 2004 is Sunday (1 day before to 6th March, 2005).
Discussion:
112 comments Page 9 of 12.
Akshay patil said:
10 years ago
2005 - 2004 + 1 (leap year) = 2/7.
= 2 remainder.
So, back to two days and it's a Saturday.
= 2 remainder.
So, back to two days and it's a Saturday.
Kannaiah said:
10 years ago
Jan (1), Feb (4), Mar (4), Apr (0), May (2), Jun (5), Jul (0), Aug (3), Sep (6), Oct (1), Nov (4), Dec (6).
Weeks:
Sun (1), Mon (2), Tues (3), Wed (4), Thurs (5) Fri (6), Sat (0 or 7).
Year c: 1800-2. 1900-0. 2000-6.
6+4+4+1+6 = 21.
7)21(3 = 0.
My Answer = Saturday.
Then how it's Sunday. Please explain me.
Weeks:
Sun (1), Mon (2), Tues (3), Wed (4), Thurs (5) Fri (6), Sat (0 or 7).
Year c: 1800-2. 1900-0. 2000-6.
6+4+4+1+6 = 21.
7)21(3 = 0.
My Answer = Saturday.
Then how it's Sunday. Please explain me.
Nitin said:
10 years ago
Hey guys according to the calendar that day is a Saturday.
Jyoo said:
10 years ago
Please tell me using year code month code short cut way.
Saintclem said:
10 years ago
@Amit pal has given the best and most simple explanation anyone can give here. Always remember this. Keep it simple!
Amit pal said:
1 decade ago
First all find actual day on 6th march 2004 that is Saturday.
Find day on 6th march 2005 that is Sunday in actual.
But they shift it by 1 day as Monday.
(So in your answer you should also shift it by one day).
Than it becomes Sunday.
Find day on 6th march 2005 that is Sunday in actual.
But they shift it by 1 day as Monday.
(So in your answer you should also shift it by one day).
Than it becomes Sunday.
JITENDRA PAL said:
1 decade ago
Guys even you can find through vedic maths.
I show you there are codes for solving calendar problems:
Months:
Jan (1) , feb (4) , mar (4) , apr (0) , may (2) , jun (5) , jul (0) , aug (3) , sep (6) , oct (1) , nov (4) , dec (6). Learn it through any trick.
Weeks:
Sun (1), mon (2), tues (3) fri (6), satur (0 or 7).
Start:
Check if condition: 6th march 2005.
Step : 6 (date) + 4 (march code) + 05 (year) + 05 (date) /4 = 6+4+5+1 = 16/7 = 2 odd days means (monday) but year is 20th century so, -1 is apply that's means 2 - 1 = 1 odd day which means sunday. But option said monday that's means add +1 means 1+1 = 2 odd days (monday).
Check then condition: 6th march 2004.
Step : 6 (date) + 4 (march code) + 04 (year) + 04 (year) /4 = 6+4+4+1 = 15/7 = 1 odd days means (sunday) but year is 20th century so, -1 is apply that's means 1-1 = 0 odd (saturday) but 2004 is leap year means again -1 that's means 6 odd (friday) but from if condition we add +1 at last according to question. It means we will +1 here also then 6 + 1 = 7 or 0 odd day means saturday.
All the best guys.
I show you there are codes for solving calendar problems:
Months:
Jan (1) , feb (4) , mar (4) , apr (0) , may (2) , jun (5) , jul (0) , aug (3) , sep (6) , oct (1) , nov (4) , dec (6). Learn it through any trick.
Weeks:
Sun (1), mon (2), tues (3) fri (6), satur (0 or 7).
Start:
Check if condition: 6th march 2005.
Step : 6 (date) + 4 (march code) + 05 (year) + 05 (date) /4 = 6+4+5+1 = 16/7 = 2 odd days means (monday) but year is 20th century so, -1 is apply that's means 2 - 1 = 1 odd day which means sunday. But option said monday that's means add +1 means 1+1 = 2 odd days (monday).
Check then condition: 6th march 2004.
Step : 6 (date) + 4 (march code) + 04 (year) + 04 (year) /4 = 6+4+4+1 = 15/7 = 1 odd days means (sunday) but year is 20th century so, -1 is apply that's means 1-1 = 0 odd (saturday) but 2004 is leap year means again -1 that's means 6 odd (friday) but from if condition we add +1 at last according to question. It means we will +1 here also then 6 + 1 = 7 or 0 odd day means saturday.
All the best guys.
Manish said:
1 decade ago
Answer is wrong. Its Saturday. Check in calendar. 2004 is leap year so odd days should be 2 not 1.
Sumanth geras said:
1 decade ago
Hi @Roji I can explain by your formula.
Day+Month code+(x-1990)+(x-1990)/4.
Step 1: First you should calculate the day for the first mentioned date.
i.e 4 for 6th march 2005.
[6+4+105+26=141/7 it should be Sunday since rem is 1].
But it was given Monday so it is shifted by one day.
Step 2: If you calculate for 6th mar' 2004 you will get Saturday.
So to get answer you should shift the obtained answer by one day. It works for all problems.
Day+Month code+(x-1990)+(x-1990)/4.
Step 1: First you should calculate the day for the first mentioned date.
i.e 4 for 6th march 2005.
[6+4+105+26=141/7 it should be Sunday since rem is 1].
But it was given Monday so it is shifted by one day.
Step 2: If you calculate for 6th mar' 2004 you will get Saturday.
So to get answer you should shift the obtained answer by one day. It works for all problems.
Anees said:
1 decade ago
Any given year is divisible by the number 4 is a leap year, pretty simple.
For e.g 2008/4 = 502 (NO REMAINDER).
2007/4 = 501.75 (REMAINDER).
Just do observe it's too simple.
For e.g 2008/4 = 502 (NO REMAINDER).
2007/4 = 501.75 (REMAINDER).
Just do observe it's too simple.
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