Question

what number should replace the question mark​

Answer 1

Question :-

1, 101, 15, 4, 29, (-93) ,43 , (-190) , ?

Solution :-

As we can see That, Alternative Numbers are increasing and Than, Decreasing .

So, we can Conclude That, its a Mix Series .

Let Check The Pattern Alternatively :-

→ 1, 15 , 29 , 43 , _ ?

→ 1 + 14 = 15

→ 15 + 14 = 29

→ 29 + 14 = 43

→ 43 + 14 = 57 (Ans).

That, Means we can conclude That, one Part is +14.

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Lets Try To See Next Part Also :-

→ 101 - 4 = 97

→ 4 - (-93) = 97

→ (-93) - (-190) = 97

So, we can conclude That, here we are adding (-97) alternatively .

Now, we have to ask one More Number ,

Than , it will be :-

→ (-190) - 97 = (-287) .

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57 is Correct Answer.

Answer 2

The given sequence is :

1, 101 , 15 , 4 , 29 , -93 , 43 , -190 , ?

This can be broken into two seperate series :

Series 1 :

1 , 15 , 29 , 43 , ?

Series 2 :

101 , 4 , -93 , -190

→ 1, 15 , 29 , 43 , _ ?

→ 1 + 14 = 15

→ 15 + 14 = 29

→ 29 + 14 = 43

→ 43 + 14 = 57 (Ans).