the square of two digit number(ab) divided by half of itself resultant added by 18 then divided by 2 then we get reverse of original number(ba). how many combination of ab exist  Choose the correct choice from the following options.
A) 9	B) 8	C) 7	D) 6	E) 5
(((10a+b)^2)/(10a+b/2)+18)/2=10b+a.   Simplify the above equation.   The final equation will be a-b=-1   There will be 8 combinations of a &amp;b which will satisfy this equation.   i.e.   a=1,b=2   a=2,b=3   a=3,b=4   a=4,b=5   a=5,b=6   a=6,b=7   a=7,b=8   a=8,b=9   9NSWER:9
<result>A</result>
the square of two digit number(ab) divided by half of itself resultant added by 18 then divided by 2 then we get reverse of original number(ba). how many combination of ab exist