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: C19, E21, __, I25, K27, ... What number should fill the blank?
Choose the correct choice from the following answers:
A) D20 B) E21 C) F22 D) G23 E) H24
E21   G23   In this series, the letters progress by 2, and the numbers increase by 2.
<result>B</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: C19, E21, __, I25, K27, ... What number should fill the blank?