Select the option that is related to the fourth letter-number cluster in the same way as the first letter-number cluster is related to the second letter-number cluster and fifth letter-number cluster is related to sixth 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)
RF18 : QD36 :: ? : MH48 :: KF72 : JD144
Show answer & explanation
Correct answer: C
Explanation
RF18 : QD36 :: ? : MH48 :: KF72 : JD144
Just as:
RF18 : QD36
RF → QD
R → Q = -1
F → D = -2
18 → 36 = ×2
And:
KF72 : JD144
KF → JD
K → J = -1
F → D = -2
72 → 144 = ×2
Similarly:
? : MH48
Applying the reverse logic for MH48:
? → MH
The letter preceding M = N
The letter preceding H = J
? × 2 = 48
? = 24
Correct Answer = NJ24