Question

n is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2n is divided by 4?

Options

• 3

• 2

• 1

• 0

Answer 1

2

Explanation 

Let n = 4q + 3

Then, 2n = 8q + 6 = 4(2q + l) + 2

Thus, when 2n is divided by 4, the remainder is 2.