Look at this series: 0.15, 0.3, ____, 1.2, 2.4, ... What number should fill the blank?
Choose the correct choice from the following options: A) 0.7 B) 0.2 C) 0.4 D) 0.1 E) 0.6
E   0.6   This is a simple multiplication series. 0.6ach number is 2 times greater than the previous number.
<result>E</result>
Look at this series: 0.15, 0.3, ____, 1.2, 2.4, ... What number should fill the blank?