1.

What will come in place of question mark (?) in the following number series?34  17  17  34  ?1. 512. 683. 1364. 855. 102

Answer» Correct Answer - Option 3 : 136

Given:

Given series is 

34  17  17  34  ?

 1/2 , 1 , 2 , 4 , 8 , 16

Since it is started from 1/2 we are multiplying each term, so 3 will not come as multiplying factor.

Calculation:

First step 

⇒ 34 × 0.5

⇒ 17

Second step

⇒ 17 × 1

⇒ 17

Third step

⇒ 17 × 2

⇒ 34

So on, 

Fourth step 

⇒ 34 × 4

⇒ 136

∴ The required missing number is 136.



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