If 45% of z is 39% of y and y is 75% of x, what percent of x is z?
Choices
A) 200 B) 160 C) 100 D) 65 E) 50
(45/100)z = (39/100)y   and y = (75/100)x i.e. y = (3/4)x   i.e. (45/100)z = (39/100)*(3/4)x   i.e. z = (39*3)x/(45*4)   i.e. z = (0.65)x = (65/100)x   i.e. z is 65% of x   Answer: Option 65
<result>D</result>
If 45% of z is 39% of y and y is 75% of x, what percent of x is z?