Question

What should come in place of question mark ‘?’ in the following number series?

13      13        26         ?        832         13312

A 140 Correct Answer Incorrect Answer
B 104 Correct Answer Incorrect Answer
C 120 Correct Answer Incorrect Answer
D 100 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

13 × 1 = 13 13 × 2 = 26 26 × 4 =  104 104 × 8 = 832 832 × 16 = 13312

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