If the tens digit x and the units digit y of a positive integer n are reversed, the resulting integer is 18 more than n. What is y in terms of x ?	Choose the correct choice from the following answers
A) 20 - x B) 18 - x C) x + 18 D) x + 2 E) x - 2
Original Digits=xy i.e. Number=10x+y   After reversing the digits:   Digits=yx i.e. Number=10y+x   10y+x is 9 more than 10x+y   10x+y+18=10y+x   10x-x+18=10y-y   9x+18=9y   x+2=y   OR   y=x+2   Ans:x + 2
<result>D</result>
If the tens digit x and the units digit y of a positive integer n are reversed, the resulting integer is 18 more than n. What is y in terms of x ?