Question 876595
 What does it means  "two digit numbers that have a larger tens digit than ones digit"? And if we reverse the number and subtract it from original number will it always generate a number that is multiple of 9 ? If yes why? If not why?
let tens digit is X and one digit is Y where X is greater than Y
number will be 10X +Y
reverse number will be  10Y +X   
as per given conditions 
10X +Y -10Y-X= multiple of 9 wher tens digit is greater than ones (54,63,72,81,90)

9X -9Y = (54,63.72,81,90) by taking 9 common both side 
X -Y =(1 or 3 or 5 or 7 or 9)
yes 
 number will we 54 or 63 or 72 or 81 or 90 answer