Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters
Look at this series: D12, H16, __, P24, T28, ... What number should fill the blank?	Choose one:
A) H16 B) I17 C) J18 D) K19 E) L20
L20   L20   In this series, the letters progress by 4, and the numbers increase by 4.
<result>E</result>
Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters
Look at this series: D12, H16, __, P24, T28, ... What number should fill the blank?