187k views
2 votes
6 ft
12 ft
9 ft
|?
15 ft

1 Answer

6 votes

Answer:

18

Explanation:

The pattern goes X2 then -3 interchangeably.

6 x 2 = 12

12 - 3 = 9

9 x 2 = 18

18 - 3 = 15

User Ntn
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