Question 39
Modular ArithmeticIf 20 (mod 9) is equivalent to y (mod 6), find y.
- A.1
- B.2
- C.3
- D.4
Show the answer and explanation
Answer: B (2)
Explanation
20 = 2 × 9 + 2, so 20 ≡ 2 (mod 9); y = 2.
If 20 (mod 9) is equivalent to y (mod 6), find y.
Answer: B (2)
20 = 2 × 9 + 2, so 20 ≡ 2 (mod 9); y = 2.