Select the set in which the numbers are related in the same way as are the numbers of the following set.
(11, 16.5, 22)
(14.5, 20, 25.5)
(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/deleting/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.)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. (18, 23.5, 29).
Logic: (1st number + 3rd number) ÷ 2 = 2nd number
(11, 16.5, 22) ⇒ (11 + 22) ÷ 2 = 33 ÷ 2 = 16.5
(14.5, 20, 25.5) ⇒ (14.5 + 25.5) ÷ 2 = 40 ÷ 2 = 20
Similarly, (18, 23.5, 29) ⇒ (18 + 29) ÷ 2 = 47 ÷ 2 = 23.5