Select the option that is related to the fifth letter-number cluster in the same way as the second letter-number cluster is related to the first letter-number cluster and fourth letter-number cluster is related to third letter-number cluster.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
AD89 : EB109 :: TK95 : LU115 :: HR88 : ?
Show answer & explanation
Correct answer: C
Explanation
AD89 → EB109: A+1=B, D+1=E, 89+20=109
TK95 → LU115: T+1=U, K+1=L, 95+20=115
HR88 → SI108: H+1=I, R+1=S, 88+20=108
Pattern: +1 in first letter to second group's second letter, +1 in second letter to second group's first letter, +20 in number
Correct Answer: SI108