Today is Tuesday. Which day of the week was it 45 days ago?

SaturdayCorrect answerYour answerFridayCorrect answerYour answerWednesdayCorrect answerYour answerSundayCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

$45 = 7 \times 6 + 3$ , so going back 45 days lands where going back 3 days does.
Three days before Tuesday is Saturday.

Worth noting

Friday counts 3 days forward; the question goes back.

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

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

Explanation