Look at this series: 1.25, 7.5, ____, 270, 1620, ... What number should fill the blank?  Choose the correct choice from the following:
A) 50	B) 65	C) 45	D) 55	E) 40
This is a simple multiplication series. Each number is 6 times greater than the previous number.   Answer: 45
<result>C</result>
Look at this series: 1.25, 7.5, ____, 270, 1620, ... What number should fill the blank?