The ratio of a to b is 4 to 5, where a and b are positive. If x equals a increased by 25 percent of a, and m equals b decreased by 80 percent of b, what is the value of m/x?	Options
A) 1/5 B) 3/4 C) 4/5 D) 5/4 E) 3/2
a/b = 4/5   m/x = (1/5)*5 / (5/4)*4 = 1/5   The answer is 1/5.
<result>A</result>
The ratio of a to b is 4 to 5, where a and b are positive. If x equals a increased by 25 percent of a, and m equals b decreased by 80 percent of b, what is the value of m/x?