Question 49
Modular ArithmeticIn what modulus is it true that 9 + 8 = 5?
- A.mod 10
- B.mod 11
- C.mod 12
- D.mod 13
Show the answer and explanation
Answer: C (mod 12)
Explanation
9 + 8 = 17 and 17 − 12 = 5, so 17 ≡ 5 (mod 12).
In what modulus is it true that 9 + 8 = 5?
Answer: C (mod 12)
9 + 8 = 17 and 17 − 12 = 5, so 17 ≡ 5 (mod 12).