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  • 2W3, 1S9, 1Q7, __, 1K1
Question 1:
2W3, 1S9, 1Q7, __, 1K1
A. 1P6
B. 1M3
Feedback The letters are consecutive letters with the prime number as the position value and the digits on either of the letter together indicate the place value of the letter.
2W3 => W = 23,1S9 => S = 19,1Q7 => Q = 17,1K1 => K = 11
Missing term is 1M3
C. 1R8
D. 1S9

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