In the given question, a letter-number series is given with one term missing as shown by (?). Choose the missing term out of the given alternatives.
2, P, 9, Q, 6, R, 13, S, 10, T, ?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 17
The letters P, Q, R, S, T simply run in order and can be set aside. The numbers are 2, 9, 6, 13, 10, and they move +7, −3, +7, −3 in turn.
The next step is a +7, so the missing number is 10 + 7 = 17.