In the given letter series, how many E’s are immediately preceded by K but not immediately followed by K?
K E K B E K E E K K E B K E K R E K E M K E K E T
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 4
Here an E is counted only when the letter just before it is K and the letter just after it is not K. Each E in the series is checked with its neighbours:
K E K (2nd term): followed by K, not counted
B E K (5th term): preceded by B, not counted
K E E (7th term): counted
E E K (8th term): preceded by E, not counted
K E B (11th term): counted
K E K (14th term): followed by K, not counted
R E K (17th term): preceded by R, not counted
K E M (19th term): counted
K E K (22nd term): followed by K, not counted
K E T (24th term): counted
So the count is four (4).