Solution:The pattern followed here is :(1st number × 3) - 1 = 2nd number & (2nd number × 2) + 1 = 3rd number
(9, 26, 53) → {(9 × 3) - 1} ⇒ 27 - 1 = 26 & {(26 × 2) + 1} ⇒ 52 + 1 = 53
(8, 23, 47) → {(8 × 3) - 1} ⇒ 24 - 1 = 23 & {(23 × 2) + 1 ⇒ 46 + 1 = 47
Similarly,
(5, 14, 29) → {(5 × 3) - 1} ⇒ 15 - 1 = 14 & {(14 × 2) + 1} ⇒ 28 + 1 = 29
Hence, "(5, 14, 29)" is the correct answer.