SOLUTION: A number consist of two digit whose sum is 9.If the place of the digit are interchanged then the new number is 5/6 times the original number .the number is

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Question 905430: A number consist of two digit whose sum is 9.If the place of the digit are interchanged then the new number is 5/6 times the original number .the number is

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!

The original number is 10A+B
The interchanged number is 10B+A.





Multiply the first equation by 5 and add to this equation,



Then,


The original number is 54, the interchanged number is 45.

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