Which group of letters will come next in the given series?
BDF, DHL, FLR, ?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → HPX
In a series of letter groups, each place in the group follows its own rule; here each place moves by a different fixed step.
First letters B (2), D (4), F (6): each is 2 places ahead, so next is \(6+2=8\), which is H
Middle letters D (4), H (8), L (12): each is 4 places ahead, so next is \(12+4=16\), which is P
Last letters F (6), L (12), R (18): each is 6 places ahead, so next is \(18+6=24\), which is X
So the next group is HPX.