Question

The difference between a 2-digit number and the number obtained by interchanging its digit is 63.what is the difference between the digits of the number​

Answer 1

Two digit number has a ten’s digit and one’s digit.

Let x be the ten’s digit and y be the one’s digit. Then,

The number = 10x+y

The number formed by interchanging its digits = 10y+x

The difference between them is 63.

i.e (10x+y)-(10y+x) =63

9x-9y =63

x-y =7

Ans: The difference between the digits of the number 7

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Answer 2

Step-by-step explanation:

let the no. be 10 x+y

after interchanging the digits

no.=10y+x

According to Question

10x+y-10y-x=63

9x-9y=63

x-y=7

therefore the answer is 7

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