If a positive integer n is divided by 5 , the remainder is 3. which of the number below yields a remainder of 0 when it is divided by 5
Choose one:
A) n+3
B) n+2
C) n-2
D) n-1
E) n+1
Correct Answer : n+2   n is divided by 5 , the remainder is 3   n=5k+3 (k is integer)   add 2 to both sides of the above equation   n+2=5k+5   =5(k+1)   n+2 divided by 5 yields a remainder to zero.
<result>B</result>
If a positive integer n is divided by 5 , the remainder is 3. which of the number below yields a remainder of 0 when it is divided by 5