Number S is obtained by squaring the sum of digits of a two digit number D. If difference between S and D is 27, then the two digit number D is:	Select.
A) 24
B) 54
C) 34
D) 45
E) 25
D = 10x + y   S = 10x^2 + y^2   S-D --&gt; (10x^2 + y^2) - (10x + y) = 27 --&gt; 10x (x-1) + y (y+1) = 27   ANSWER:54
<result>B</result>
Number S is obtained by squaring the sum of digits of a two digit number D. If difference between S and D is 27, then the two digit number D is: