Select the option in which the numbers are related in the same way as are the numbers in the given set.
(11, 23, 47)
Answer & explanation
Correct answer: option 3
(11, 23, 47)
The logic followed here is :
Ist term × 2 + 1 = IInd term and IInd term × 2 + 1 = IIIrd term
As
11 × 2 + 1 =23 and 23 × 2 + 1 = 47
Similarly
(19, 39, 79)
19 × 2 + 1 =39 and 39 × 2 + 1 = 79