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)
AD40 : EJ60 :: EF60 : IL90 :: KM80 : ?
Show answer & explanation
Correct answer: C
Explanation
AD40 : EJ60 :: EF60 : IL90 :: KM80 : ?
Just as:
AD40 : EJ60
A → E (+4)
D → J (+6)
40 → 60 = +20
And:
EF60 : IL90
E → I (+4)
F → L (+6)
60 → 90 = +30
Similarly:
KM80 : ?
K → O (+4)
M → S (+6)
80 + 40 = 120
Correct Answer: OS120