If a whole number n is divided by 4, we will get 3 as remainder. What will be the remainder if 2n is divided by 4 ?
Choices: A) 4 B) 3 C) 2 D) 1 E) 0
Explanation:   Let n ÷ 4 = p , remainder = 3   =&gt; n = 4p + 3   2n = 2(4p + 3)   = 8p + 6   = 8p + 4 + 2   = 4(2p + 1) + 2   Hence, if 2n is divided by 4, we will get 2 as remainder.   Answer: 2
<result>C</result>
If a whole number n is divided by 4, we will get 3 as remainder. What will be the remainder if 2n is divided by 4 ?