In a two digit number,the ten digit is three times the unit digit .when the number is decreased by54,the digit are reversed .find the number
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Two digit number = 10x + y
Ten's digit = x
Unit digit = y
According to the question
x = 3y. -(1)
10x + y - 54 = 10y + x
9x - 9y = 54
x - y = 6
3y - y = 6
y = 3
x = 3y = (3*3) = 9
Two digit number = 10x + y
=(10*9) + 3
=93
Ten's digit = x
Unit digit = y
According to the question
x = 3y. -(1)
10x + y - 54 = 10y + x
9x - 9y = 54
x - y = 6
3y - y = 6
y = 3
x = 3y = (3*3) = 9
Two digit number = 10x + y
=(10*9) + 3
=93
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