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In the given series, the number at the place of question mark will be:

3 : 10 : 5 : ?


1. 2
2. 25
3. 26
4. 27

1 Answer

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Best answer
Correct Answer - Option 3 : 26

The logic followed here is:

Squaring the first number then add 1 to it.

3 : 10 →

= 3 : 32 + 1 

= 3 : 9 + 1

Similarly,

5 : ? →

= 5 : 52 + 1

= 5 : 25 + 1

= 5 : 26

Hence, ‘26’ is the correct answer.  

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