Subtracting 10% from X is the same as multiplying X by what number?
Options.
A) 70%  B) 90%  C) 50%  D) 97%  E) 10%
X - (10/100) X = X * ?   ? = 90%   Answer: 90%
<result>B</result>
Subtracting 10% from X is the same as multiplying X by what number?