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Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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What comes next in the series: AZY, CXW, EVU, GTS,?
IRQ
IRP
ISQ
ITQ
IRQ
Observe the first, second, and third letters of each cluster as three separate independent series with simple +2, -2, -2 increments respectively.
Observe the first, second, and third letters of each cluster as three separate independent series with simple +2, -2, -2 increments respectively.
Analyze the first letters
A(1), C(3), E(5), G(7). The pattern is +2. Next letter is 7 + 2 = 9, which is I.
Analyze the second letters
Z(26), X(24), V(22), T(20). The pattern is -2. Next letter is 20 - 2 = 18, which is R.
Analyze the third letters
Y(25), W(23), U(21), S(19). The pattern is -2. Next letter is 19 - 2 = 17, which is Q.
B: IRP is incorrect because the third letter should be Q, not P. C: ISQ is incorrect because the second letter should be R, not S. D: ITQ is incorrect because the second letter should be R, not T.
A is correct because the series follows a consistent +2, -2, -2 pattern for the first, second, and third letters respectively, resulting in IRQ.
For letter series questions, always write down the positional values (A=1, B=2, Z=26) immediately on the scratchpad to spot arithmetic patterns in seconds.