Question

If 4 april 1988 monday then what day of 5 november 1989?

Answer 1

Hi there !
Here's the answer:

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Applying Doomsday Concept makes this solving more easier:

Doomsday:
The weekday that falls on all the below days of month in the same year is called 'Doomsday of that year'.

Jan 3(for non leap), 4( for leap)
Feb 7(for non leap), 8(for leap)
Mar 7

May 9
Jul 11
Sep 5
Nov 7

Apr 4
Jun 6
Aug 8
Oct 10
Dec 12


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Now,
Given
April 4 1988 - Monday

1988 is not an year before leap[ This will have an other case if the year is an year before leap]

(1988 is itself a leap year)
April 4 will itself gives doomsday of 1988

•°• Doomsday of 1988 = Monday

1989 is an year after 1988. so doomsday of 1989 is one day after doomsday of 1988.

•°• Doomsday for year 1989 = Tuesday

In 1989, Tuesday falls on November 7
Nov 7 - Tuesday
Nov 6 - Monday
Nov 5 - Sunday

•°• The day of the week of 5th Nov 1989 is Sunday.


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Hope it helps
:)