Question

Which of the following terms will replace the question mark (?) in the given series to make it logically complete? TBL 29, YYQ 26, DVV 23, ISA 20, ?

• A. NVF 19
• B. NPF 17
• C. DVP 19
• D. DPV 17

Answer 1

Answer:

B. NPF 17

The missing term that will logically complete the series is NPF 17.

The series can be broken down into four independent patterns for each character position (using alphabet positions where $A=1, B=2, \dots, Z=26$):

• First Letter ($+5$ progression):

  • $\text{T }(20) + 5 = \text{Y }(25)$

  • $\text{Y }(25) + 5 = 30 \rightarrow \text{D }(4)$

  • $\text{D }(4) + 5 = \text{I }(9)$

  • $\text{I }(9) + 5 = \text{N }(14)$

• Second Letter ($-3$ progression):

  • $\text{B }(2) - 3 = -1 \rightarrow \text{Y }(25)$

  • $\text{Y }(25) - 3 = \text{V }(22)$

  • $\text{V }(22) - 3 = \text{S }(19)$

  • $\text{S }(19) - 3 = \text{P }(16)$

• Third Letter ($+5$ progression):

  • $\text{L }(12) + 5 = \text{Q }(17)$

  • $\text{Q }(17) + 5 = \text{V }(22)$

  • $\text{V }(22) + 5 = 27 \rightarrow \text{A }(1)$

  • $\text{A }(1) + 5 = \text{F }(6)$

• Number ($-3$ progression):

  • $29 - 3 = 26$

  • $26 - 3 = 23$

  • $23 - 3 = 20$

  • $20 - 3 = \mathbf{17}$

Combining these results gives NPF 17.