What number has a 1:20 ratio to the number 10?  Options:	A) 10	B) 1/2	C) 2	D) 1/4	E) 20
1:20 = x: 10   20x = 10; x=10/20   x=1/2   ANSWER:1/2
<result>B</result>
What number has a 1:20 ratio to the number 10?