13, 20, 39, 78, 145, (?) | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The pattern of the series is based on the differences between consecutive terms:$20 - 13 = 7$$39 - 20 = 19$$78 - 39 = 39$$145 - 78 = 67$Now,look a

Vedclass · Accepted Answer

$248$

Vedclass · Answer

(D) The pattern of the series is based on the differences between consecutive terms:$20 - 13 = 7$$39 - 20 = 19$$78 - 39 = 39$$145 - 78 = 67$Now,look at the differences of these differences:$19 - 7 = 12$$39 - 19 = 20$$67 - 39 = 28$The differences of the differences increase by $8$ $(12+8=20, 20+8=28)$.Following this pattern,the next difference of the difference should be $28 + 8 = 36$.Therefore,the next difference between the terms will be $67 + 36 = 103$.Finally,the next term in the series is $145 + 103 = 248$.

$13, 20, 39, 78, 145, (?)$

Similar Questions

$2, 18, 66, 210, 642, \dots$

$2, 1, 2, 4, 4, 5, 6, 7, 8, 8, 10, 11, ?$

Find out the odd number from the given sequence: $32, 16, 24, 65, 210, 945, 5197.5$.

$589654237, 89654237, 8965423, 965423, ?$

$248, 217, 188, 165, ?, 129, 116$

Vedclass Test Series

Exam Paper Generator

Online Exam Module