In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number of the right side of (-) with some Logic/Rule/Relation. Three pairs are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives. (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)
Answer & explanation
Correct answer: option 3
Except option 3 all are following the same pattern
The logic followed here is :
(Ist number × 3) + 3 = second number
As
(7 × 3) + 3 = 24
(13 × 3) + 3 = 42
(11 × 3) + 3 = 36 but 37 is given (ODD)
(5 × 3) + 3 = 18