Select the option in which the numbers are related in the same way as are the numbers of the following set.
{2, 2, 9}
Answer & explanation
Correct answer: option 3
{2, 2, 9}
The logic followed here is :
(Ist number + IInd number) × 2 + 1 = IIIrd number
As
(2 + 2) × 2 + 1
4 × 2 + 1
8 + 1 = 9
Similarly {4, 8, 25}
(4 + 8) × 2 + 1
12 × 2 + 1
24 + 1 = 25