Discussion
Select the alpha-numeric term from the given options than can replace the question mark (?) and complete the series. B-113, F-125, J-142, N-164, R-191, ?
Answer: A
The letters go B, F, J, N, R, which move four places each time, so the next letter is V. The numbers 113, 125, 142, 164 and 191 differ by 12, 17, 22 and 27, which rise by 5 each time, so the next difference is 32 and the next number is 191 + 32 = 223. The missing term is therefore V-223, option (A). The options beginning with U break the four-place step in the letters, and V-221 does not follow the number pattern, since it would need a difference of 30.
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