how many number x (x being an integer) with 10<=x<=99 are 18 more than sum of their digits?
Choose the correct choice from the following answers:  A) 12  B) 9  C) 8  D) 18  E) 10
Let the no. be 10y+z.   then,   10y+z= y+z+18   =&gt; Y=2   So the no. are 20, 21, 22, 23, 24, 25, 26, 27, 28, 29. Total nos. 10   ANSW10R:10
<result>E</result>
how many number x (x being an integer) with 10<=x<=99 are 18 more than sum of their digits?