If p/4 = r/2 and r = 0.75s, what is the ratio of p to r to s?	Choices
A) 2 : 3 : 4	B) 8 : 12 : 9	C) 12 : 6 : 8	D) 6 : 4 : 3	E) 12 : 8 : 3
p/4=r/2, r=0.75s, what is p:r:s?   we get p/r=4/2 and r/s=3/4, so   4/3*3/2 and 2/2*3/4   12/6 and 6/8   12 : 6 : 8
<result>C</result>
If p/4 = r/2 and r = 0.75s, what is the ratio of p to r to s?