What day of the week was on April 18, 1865?

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UP Police SI (दरोगा) Previous Paper 7 (Held On: 19 Dec 2017 Shift 3)
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  1. Sunday
  2. Wednesday
  3. Friday
  4. Tuesday

Answer (Detailed Solution Below)

Option 4 : Tuesday
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Detailed Solution

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When finding the reference date without reference date then formula will be:(Century code+ Year code + Month code + Date code)/7

Day Codes:

Sunday = 0 

Monday = 1 

Tuesday = 2 

Wednesday = 3 

Thrusday = 4 

Friday = 5

Saturday = 6 

Month Codes:

Jan = 1 

Feb = 4 

Mar = 4 

Apr = 0 

May = 2 

Jun = 5 

Jul = 0 

Aug = 3 

Sep = 6 

Oct = 1 

Nov = 4 

Dec = 6 

Century Codes:

1500 - 1599 ---> 0 

1600 - 1699 ---> 6 

1700 - 1799 ---> 4 

1800 - 1899 ---> 2 

1900 - 1999 ---> 0 

2000 - 2099 ---> 6 

2100 - 2199 ---> 4 

2200 - 2299 ---> 2 

2300 - 2399 ---> 0 

Century code for 1865 is 2.

The year code can be find through (last 2 digit of year + (last 2 digit of year/4))/7.

(65 + 65/4)/7  = (65 + 1)/7 = 3

Here remainder will be 3 so year code will be 3

The code for April for non leap year: 0

The code for date will be date/7, here remainder will be 4 so code for date will be 4

Summing up,

(2 + 0 + 3 + 4) / 7 = 9/7 

Here remainder is 2 which is code for Tuesday in below given list to on April 18, 1865 day will be Tuesday.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

0

1

2

3

4

5

6

 

So, the day is Tuesday.

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