When n is divided by 4, the remainder is 3. The remainder

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When n is divided by 4, the remainder is 3. The remainder when 2n is divided by 4 is :

Let quotient be 1.
∴ n = 4 × 1 + 3 = 7
∴ 2n = 2 × 7 = 14,
On dividing 14 by 4, remainder = 2