Answers

2014-08-18T20:38:48+05:30
The number is 93 . ten's digit is 3 times greater than unit digit and after sub. 54 digit will reversed
0
2014-08-18T21:06:31+05:30
Let the unit's digit is   =   x
and ten's digit be       =   3x     (According to question (Unit digit)=3*(ten's digit)  )
A.T.Q.
           ( 10(3x) + x ) - 54  =  10(x) + 3x
                        31x - 54   =  13x
                              18x  =  54
                                 x  =  3
Therefore   Unit Digit of the number is 3
                Tens' Digit of the number is 9
        Number is  93
1 5 1
( 10(3x) + x ) - 54 = 10(x) + 3x
31x - 54 = 13x
18x = 54
x = 3
Therefore Unit Digit of the number is 3
Tens' Digit of the number is 9
Number is 93