When divided by 5, x has a remainder of 4 and y has a remainder of 3. Which of the following could be the remainder when x + y is divided by 10? Answers:
A) 6
B) 7
C) 8
D) 9
E) 0
x = 5k+4 and y = 5j+3   x+y = 5(j+k) + 7   When divided by 10, the remainder is either 7 or 2.   The answer is 7.
<result>B</result>
When divided by 5, x has a remainder of 4 and y has a remainder of 3. Which of the following could be the remainder when x + y is divided by 10?