Question
The sum of digits of a two-digit number is 10. When the
digits are reversed, the number decreases by 54. Find the changed number.Solution
Let the unit digit =x and tens =y 10y + x After reversed digit =10x+y ATQ- 10x+y-10y-x =54 9x -9y =54. x-y =6 x + y =10 x =2, y =8. Original number =82 Change number =28.
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