Four number groups are given, out of which three are same in a certain way. Find the odd group that does not belong to the group?
Answer & explanation
Correct answer: option 4
6 → 6 × \(\frac{3}{2}\) = 9 (6)2 – 1 = 35 ,
8 → 8 × \(\frac{3}{2}\) = 12 (8)2 – 1 = 63 ,
10 → 10 × \(\frac{3}{2}\) = 15 (10)2 – 1 = 99 ,
But in option (4) it is not following the above pattern,
2 → 2 × \(\frac{3}{2}\) = 3 (2)2 – 1 = 3