The difference between a two-digit number and the number after interchanging the position of the two digits is 54. What is the difference between the two digits of the number? Pick one
A) 4
B) 6
C) 3
D) Cannot be determined
E) None of these
Let the two-digit no. be l0x + y.   Then, (10x + y) â€“ (10y + x) = 36   or, 9(x â€“ y) = 54   or, x â€“ y = 6   Answer 6
<result>B</result>
The difference between a two-digit number and the number after interchanging the position of the two digits is 54. What is the difference between the two digits of the number?