Question

8,17,35,71...find number

Answer 1

Multiply the number with 2 & add 1.
8*2 = 16. 16+1 =17. 
17*2 = 34. 34+1 = 35.
35*2 = 70. 70+1 = 71.
71*2 = 142. 142+1 = 143.
143*2 = 286. 286+1 = 287 & so on.

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Answer 2

Concept

In mathematics and theoretical computer science, a constant recursive sequence is an infinite sequence of numbers in which each number in the sequence is equal to a fixed linear combination of one or more of its immediate predecessors.

Given

The sequence 8,17,35,71...

FIND

The number after 8,17,35,71....

Solution

• If we see the given numbers we can see the all number follow same sequence which is multiply by 2 and adding 1
• (8*2)+1=17, (17*2)+1=35 so the next number will be (71*2)+1=143

Hence the number will be 143

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