Aptitude - Calendar - Discussion

I can't understand this problem. Please explain in simple. What is the odd no?

Please explain one example with simple method?

Simple solution here is the trick. Just need to follow this step, guys this type of questions is very easy. But you.

Need to be perfect while solving.

First of all.

Month code.

Jan - 1.
Feb - 4.
Mar - 4.
Apr - 0.
May - 2.
June - 5.
July - 0.
August - 3.
September - 6.
October - 1.
November - 4.
December - 6.

Day code:

Sun - 1.
Mon - 2.
Tues - 4.
Wed - 5.
Thur - 7.
Fri - 8.
Sat - no decimal.

Now lets solve one example.

Example :- My DOB is 15th august 1989.

Step 1 - Take the last two digit of your birth year. Here in my case it is ' 89 '.

Step 2 - Now multiply the last two digit of birth year by "5".

89 x 5 = 445.

Step 3 - Now divide the result by "4".

445/4 = 111.25.

Step 4 - in this step remove the part of the result after decimal (RHS).

111.25 - remove 25.

Now we are having 111.

Step 5 - Now add the month code given above to this.

Month code for august is '3'.

So after adding.

3 + 111 = 114.

Step 6 - Now add the date of your birth. To this.

114 + 15 (15th august) = 129.

Step 7 - Don't worry this is the last step. ;-) ;-) ha ha.

Now finally divide this by '7'.

129/7 = 18.428.

Now we have got the final answer 18.428.

Now very important thing to remember. You have to look.

Upon the next digit after the decimal (right hand side).

In 18.428 the digit after the decimal is '4'.

Now go to the day code given above and see there '4' is for Tuesday. So answer is Tuesday.

15th august 1989 was a Tuesday.

Hope you all have understood this trick.

Note :- 1) I f in the " step 7 " you get no decimal than it is definitely " Saturday ". (see the day code column I have Already mentioned there " Saturday - no decimal ").

2) what to do if the date given is from leap year. Do the all step as it is, just.

Consider the earlier day.

Ex:- If at the last step you get " Friday " then Thursday will be your answer.

That's it. Just practice this steps you'll be perfect. Hope you all like this.

If in the last step I get "6" which day I consider, because you don't give no week day for "6".

Please explain why you consider 1600 is zero odd days?

@Vijay singh your answer is right and if you observe it carefully you will understand how 400 is having zero Odd days.

2004 have also 0 why did you not use by 2004?

Keep year has 366 days so comparing to non keep year it has an extra day generally a non keep year has an odd day (non keep year has 365 days 364+1==365 so the last day is odd day) so keep year has 2 odd days.

6/4 = 1.3.
take 1,

Now, 1+28+6+1.
36.
36/7.
1.

Which is sunday.

What is mean by odd days I can't understand can you please explain it in brief?