8 15 29 57 113 ? the series of numbers given in the circle and the last one number is missing. So we have to find last number that is the question mark. So lets see circle and guess what series of number pattern applying here.
If you look at the circle carefully then you will find that every next number is twice and less than 1 from the previous one. Let’s see the explanation of how it could be solved.
There is total six part in this circle and we have to find the last one which is 6th part. So lets start from 2nd part how it comes 15 from 1st part. So lets see below-
If you do twice of 1st part and subtract one from their product then you will get 2nd part like
8 x 2 -1 = 15
again applying same rule for all and you will get the final answer of question mark let’s try it.
15 x 2 – 1 = 29
29 x 2 – 1 = 57
57 x 2 – 1 = 113
113 x 2 -1 = 225, The correct answer for this question mark will be 225 or ? =225
Hence: The option number C is the correct answer.
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