Select the set in which the numbers are related in the same way as the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their 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)
(17, 26, 37) (170, 197, 226)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. (48, 63, 80).
(17, 26, 37) → (17 + 37) ÷ 2 - 1 = 54 ÷ 2 - 1 = 27 - 1 = 26
(170, 197, 226) → (170 + 226) ÷ 2 - 1 = 396 ÷ 2 - 1 = 198 - 1 = 197
Similarly, (48, 63, 80) → (48 + 80) ÷ 2 - 1 = 128 ÷ 2 - 1 = 64 - 1 = 63