When the positive integer y is divided by 9, the remainder is 5. What is the remainder when 3y is divided by 9?
Choose the correct choice from the following answers
A) 0
B) 1
C) 3
D) 4
E) 6
Lets take the number as y   when y is divided by 9 the remainder is 5 hence y can be written as   y=9k +5   Multiplying by 3 will give   3y = 27k + 15   we can also write   3y = 27k + 9 + 6   Now 27k and 9 are divisible by 9 leaving the remainder as 6 hence 6 is the answer.
<result>E</result>
When the positive integer y is divided by 9, the remainder is 5. What is the remainder when 3y is divided by 9?