certain way as they are formed by performing same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group?
A11 : 21 : 121Correct AnswerIncorrect Answer
B7 : 15 : 49Correct AnswerIncorrect Answer
C2 : 3 : 4Correct AnswerIncorrect Answer
D9 : 17 : 81Correct AnswerIncorrect Answer
Solution
Logic: (first number) : (Second number) : (Third number) (first number) : (Double of first number -1) : ( Square of the first number)
