Question

If 1st January 2001 was Monday, then what day of the week was it on 31st December, 2001?
a) Wednesday b) Friday c) Monday
d) Saturday e) None of these

Answer 1

Given :- If 1st January 2001 was Monday, then what day of the week was it on 31st December, 2001 ?

a) Wednesday

b) Friday

c) Monday

d) Saturday

e) None of these

Solution :-

we know that,

• Odd day :- Remainder we get, when we divide number of days by 7.
• In a simple year we have = 365 days.

So,

→ 1st January 2001 to 31st December 2001 = 364 days. { since 2001 is not a leap year, 365 - 1st jan.}

then,

→ Odd days = 364 / 7 = 0 Remainder .

therefore,

→ 31st December 2001 = Monday + 0 = Monday (C) (Ans.)

Hence, On 31st December 2001 it was Monday.

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Answer 2

Answer:

Step-by-step explanation:

Monday