Select the set in which the numbers are NOT related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits.)
(4, 5, 82)
(6, 11, 314)

Correct option is C

In this following logic is followed-
(1^st)² + (2^nd)² ×2 = 3^rd Number
4, 5, 82 → (4² + 5²) ×2 = (16 + 25) ×2 = 41×2 = 82
6, 11, 314 → (6² + 11²) ×2 = (36 + 121) ×2 = 157×2 = 314
Similarly,
Option (a) 7, 10, 298 → (7² + 10²) ×2 = (49 + 100) ×2 = 149×2 = 298
Option (b) 13, 15, 788 → (13² + 15²) ×2 = (169 + 225) ×2 = 394×2 = 788
Option (c) 11,9, 560 → (11² + 9²) ×2 = (121 + 81) ×2 = 202×2 = 404 ≠560
Option (d) 9, 8, 290 → (9² + 8²) ×2 = (81 + 64) ×2 = 145×2 = 290
Therefore, the correct answer is (c).