When an integer `K` is divided by 3, the remainder is 1 and when `K+1` is divided by 5, the

When a natural number x is divided by 5, the remainder is 2. When a natural number y is divided by 5, the remainder is 4, The remainder is z when x+y is divided by 5. The value of (2z-5)/(3) is

When 3^(21684) is divided by 5, the remainder is

When 3^(21684) is divided by 5, the remainder is

When n is divided by 4, the remainder is 3. What is the remainder when 2n is divided by 4? 1 (b) 2 (c) 3 (d) 6