Question

the difference between a two-digit number and the number obtained by interchanging the digit is 9 find the difference between the two digit of that number ​

Answer 1

Answer:

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Step-by-step explanation:

Let the unit's digit be y and ten's digit be x.

Then, the number =10x+y. When we interchange the digits, the number will be 10y+x.

Now, it is given that the difference between a two digit number and the number obtained by interchanged the two digits of the number is 9, therefore, we have:

(10x+y)−(10y+x) = 9

⇒9x−9y = 9

⇒9(x−y) = 9

⇒x−y = 99

⇒x−y=1

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Hence, the difference between the two digits of number is 1.

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Answer 2

Answer:

the difference between two digit no. is 1.

Step-by-step explanation:

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