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 ?
Choose the most appropriate option:
A) 1
B) 3
C) 5
D) 2
E) 0
Let n = 4q + 3. Then 2n = 8q + 6 = 4(2q + 1 ) + 2.   Thus, when 2n is divided by 4, the remainder is 2.   ANSWER 2
<result>D</result>
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 ?