Math, asked by vipulnath999, 1 year ago

Insert the missing number: 5, 11, 21, 43, ….
(a) 85 (b) 86 (c) 87 (d) 88

Answers

Answered by UltimateMasTerMind
10
Heyy Buddy❤

Here's your Answer...

First Number = 5.

=> Second Number = 11 ( 5× 2 +1)

=> Third Number = 21 ( 11 × 2 - 1)

=> Fourth Number = 43 ( 21 × 2 + 1)

Therefore,

Fifth Number = 43 × 2 -1

=> 86 - 1

=> 85.

Option A. 85
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vipulnath999: Although it seems to work out but the logic doesn't seem so strong in this one
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