Question
What should come in place of the question mark (?) in
the given series based on the English alphabetical order? NRT, JNP, FJL, BFH, ?Solution
Look at the positions (A=1, B=2, …):
N(14) R(18) T(20)
J(10) N(14) P(16) → each letter −4
F(6) J(10) L(12) → each letter −4
B(2) F(6) H(8) → each letter −4
Continue −4 from B(2), F(6), H(8):
B(2) − 4 = −2 → +26 = 24 → X
F(6) − 4 = 2 → B
H(8) − 4 = 4 → D
So the next term is XBD .
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