Saved Bookmarks
| 1. |
The sum of the digits of a two digit number is 15,The number obtained by interchanging the digit exceed the given number by 9.find the number |
|
Answer» Let the digits be X and y The no is 10x+y ATQ x+y=15 Also 10y+x-9=10x+y 9x-9y=-9 |
|