Question : Directions: Which letter cluster will replace the question mark (?) to complete the given series?
ABCD, EBCD, ?, OBCD, UBCD
Option 1: JBCD
Option 2: LBCD
Option 3: IBCD
Option 4: KBCD
Correct Answer: IBCD
Solution :
Given:
ABCD, EBCD, ?, OBCD, UBCD
According to the vowel series (A, E, I, O, U), the first letter is increased by 1 from the previous term and BCD is constant in all the terms –
ABCD
→
A + 1 = E; According to the vowel series; EBCD
EBCD
→
E + 1 = I; According to the vowel series; IBCD
IBCD
→
I + 1 = O; According to the vowel series; OBCD
OBCD
→
O + 1 = U; According to the vowel series; UBCD
So, IBCD is the missing term in the series. Hence, the third option is correct.
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