a ≡ 2 (mod 6) and b ≡ 5 (mod 6). What is (a - b) mod 6?

Modulo Arithmetic & Congruence · Question 53 of 97

Question 53

MediumOriginal question

$a \equiv 2 \pmod{6}$ and $b \equiv 5 \pmod{6}$ . What is $(a - b) \bmod 6$ ?

3

Correct answerYour answer

4

Correct answerYour answer

5

Correct answerYour answer

6

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Worth noting

$-3$ must be brought into $0, \dots, 5$ by adding 6.

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

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