Question : Directions: Which term from among the given options can replace the question mark (?) in the following series to make it logically complete?
D13Q, F17R, ?, J25T, L29U
Option 1: G22R
Option 2: G21S
Option 3: H22R
Option 4: H21S
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Correct Answer: H21S
Solution :
Given:
D13Q, F17R, ?, J25T, L29U
In the above-given series, add 2 to the place value of the first letter, 4 to the number, and 1 to the place value of the third letter to obtain the next term.
D13Q→D + 2 = F; 13 + 4 = 17; Q + 1 = R→F17R
F17R→F + 2 = H; 17 + 4 = 21; R + 1 = S→H21S
H21S→H + 2 = J; 21 + 4 = 25; S + 1 = T→J25T
J25T→J + 2 = L; 25 + 4 = 29; T + 1 = U→L29U
So, H21S is the missing term of the series. Hence, the fourth option is correct.
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