Question

The sum of the digits of a two digit number is 9 . The number obtained by inter changing its digits is 9 less than thrice the original number. Find the number.
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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

let the first number = x

let the second number= y

ATQ

x + y = 9

3 [10x + y] - 9= 10y + x

so x=2

y=7