Question : Directions: Which term from among the given options can replace the question mark (?) in the following series to make it logically complete?
AN 37, (?), EH 50, GE 58, IB 67
Option 1: DL 42
Option 2: DI 45
Option 3: CK 43
Option 4: CL 44
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Correct Answer: CK 43
Solution :
Given:
AN 37, (?), EH 50, GE 58, IB 67
For letter-based series –
Add 2 in the first letter and subtract 3 from the second letter of the previous term of the given series.
AN→A + 2 = C; N – 3 = K
CK→C + 2 = E; K – 3 = H
EH→E + 2 = G; H – 3 = E
GE→G + 2 = I; E – 3 = B
For number-based series –
Add numbers starting from 6 to 9 to the previous numeric term of the given series.
37 + 6 = 43; 43 + 7 = 50; 50 + 8 = 58; 58 + 9 = 67
So, CK 43 is the missing term in the series. Hence, the third option is correct.
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