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Question:

Select the missing number from the given responses. A4545B2626C11D3939?

45

26

1

39

Solution:

Correct option is C. 39
3 × 2 - 1 = 5
5 × 2 - 2 = 8
8 × 2 - 3 = 13
13 × 2 - 4 = 22
22 × 2 - 5 = 39