Question : Directions: Which term from among the given options can replace the question mark (?) in the following series to make it logically complete?
QX 10, ?, WD 30, ZG 26, CJ 130
Option 1: SB 15
Option 2: TA 6
Option 3: SC 12
Option 4: TB 18
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Correct Answer: TA 6
Solution :
Given:
QX 10, ?, WD 30, ZG 26, CJ 130
In the above-given series, add 3 to the place values of the letters, subtract 4, and multiply 5 alternatively in the numbers to arrive at the next term of the series.
First letter of the series→Q + 3 = T; T + 3 = W; W + 3 = Z; Z + 3 = C
Second letter of the series→X + 3 = A; A + 3 = D; D + 3 = G; G + 3 = J
Number of the series→10 – 4 = 6; 6 × 5 = 30; 30 – 4 = 26; 26 × 5 = 130
So, according to the above pattern, the missing term is TA 6 . Hence, the second option is correct.
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