What comes next? G7, T20, H8, S19, ?
I9
The series interleaves two separate sequences, taken at alternate positions.
Odd positions (1st, 3rd, 5th): G7, H8, ? — the letter moves forward by one (G \(\to\) H \(\to\) I) and the number equals the letter's position in the alphabet (G = 7, H = 8, I = 9).
Even positions (2nd, 4th): T20, S19 — the letter moves backward by one (T \(\to\) S) and again the number is the alphabet position (T = 20, S = 19).
The blank sits at the 5th (odd) position, so it continues the forward chain after H8: the next letter is I, and I = 9.
Hence, the answer is I9.
Similar Questions
Find the pair that does NOT follow the double-step pattern.
Q2, R4, S6, T8, V12
What comes next?
C3, X24, D4, W23, ?- Alphanumeric Series: W % ^ K V P 1 I 7 E O & 2 9 A F Z N 4 * @ U ? M
What is the second element from the right of the 7th element from left? Choose the item that breaks the rule.
A5, C7, E9, G11, I10
Which pair does NOT belong to the following sequence?
B7, C9, F11, H13, J17
Important Questions from Alpha-numeric series
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
DFA, HJE, LNI, PRM, ?What should come in place of the question mark (?) in the given series based on the English alphabetical order?
GEB, JHE, MKH, PNK, ?Which letter-cluster will replace the question mark (?) to complete the given series?
KLHO, LKIN, ?, QFNI, UBRESelect the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
ZY_WZTX_Z_XU_JXTWhat should come in place of the question mark (?) in the given series based on the English alphabetical order?
EGC, IFG, MEK, QDO, ?
