Question

In a two digit number,
digit in unit place is three times the digit.
in tens place. If 54 is added to it, digit are reversed. Find the number
​

Answer 1

Answer:

Unit digit: x, ten digit: 3x.

3x(10)+x= A

x(10)+3x= B

A-B= 54

A=B+54

31x=54+13x

18x=54

X=3

Hence ,

Unit Digit: 3

Ten's digit : 9

Final number : 93

Reverse number:39, difference between this number is 54.

Answer 2

Answer:

Unit digit: x, ten digit: 3x.

3x(10)+x= A

x(10)+3x= B

A-B= 54

A=B+54

31x=54+13x

18x=54

X=3

Hence ,

Unit Digit: 3

Ten's digit : 9

Final number : 93

Reverse number:39, difference between this number is 54.