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Modulo Arithmetic & Congruence · Question 16 of 97

Question 16

MediumOriginal question

1 January 2027 is a Friday. On which day of the week does 1 March 2027 fall?

Options for question 16

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. January has 31 days and February 2027 has 28, so 1 March is 59 days later.

  2. 59 mod 7=359 \bmod 7 = 3: three days after Friday is Monday.

Worth noting

Counting February as 29 days gives Tuesday; 2027 is not a leap year.

Concept
Days of the week
Typical time
90 s
Your time
—
The rule this testsThe modulo operation
Practise this chapter →

Ten questions from Modulo Arithmetic & Congruence, at your own pace.

Practise this chapter →

Ten questions from Modulo Arithmetic & Congruence, at your own pace.