Select the correct alternative from the given choices. If 14^th February 2001 was a Wednesday,

step 1 From 14th Fab, 2001 to 14th, 5th, 5th, 2101, 100 years. The day was Wednesday. Wednesday, 100 di

Select the correct alternative from the given choices. If...

Select the correct alternative from the given choices.
If $14^{\text {th }}$ February 2001 was a Wednesday, then what day of the week will $14^{\text {th }}$ February 2101 be (i.e., after a century)?
(A) Friday
(B) Saturday
(C) Sunday
(D) Monday

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Key Concepts

Day Shift Calculation

This concept involves determining how many days of the week advance over a given number of years. Each common year contributes a one-day shift while each leap year contributes a two-day shift. By summing these contributions and taking the total modulo 7, one can compute what day of the week a future (or past) date will fall on.

Leap Year Rule

This rule defines which years are leap years: a year is typically a leap year if it is divisible by 4, but century years must be divisible by 400 to be leap years. This rule significantly affects the count of extra days in a sequence of years and thus impacts calendar calculations over long periods.

Calendar Arithmetic

This concept refers to the method of computing dates and days of the week by accounting for the accumulation of extra days due to both common and leap years. It involves modular arithmetic (usually modulo 7 for days of the week) to determine the resulting day after a given number of years or days, thereby linking numeric calculations to calendar dates.

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