Question
Select the set in which the numbers are related in the
same way as are the numbers of the following set. (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). (18, 42, 72) (16, 34, 54)Solution
The logic followed here is: 3rd number = 3 times |2nd number - 1st number | In (18, 42, 72) → 1st number = 18, 2nd number = 42, 3rd number = 3 x |42 - 18| = 3 x 24 = 72 In (16, 34, 54) →1st number = 34, 2nd number = 16, 3rd number = 3 x |34 - 16| = 3 x 18 = 54 A) In (21, 45, 65) → 1st number = 21, 2nd number = 45, 3rd number = 3 x |45 - 21| = 3 x 24 = 72 B) In (50, 24, 78) → 1st number = 50, 2nd number = 24, 3rd number = 3 x |50 - 24| = 3 x 26 = 78 C) In (12, 36, 46) → 1st number = 12, 2nd number = 36, 3rd number = 3 x |36 - 12| = 3 x 24 = 72 D) In (28, 62, 104) → 1st number = 28, 2nd number = 62, 3rd number = 3 x |62 - 28| = 3 x 34 = 102.
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