the difference between a 2 digit number and the number obtained by interchanging the position of its digits 63. what is the difference between the two digits of that number?
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Let me number be xy.
we can write it as 10x+y and after interchanging the number becomes yx which can be written as 10y+x.
(10x+y) - (10y+x) = 63
10x+y-10y-x = 63
9x-9y=63
9(x-y)=63
x-y = 7
Hence difference between digits is 7.
Step-by-step explanation:
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