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I will give you a clue. The pattern is a combination of multiplication, addition and subtraction. You just need to figure out the whole formula and you will come up with the answer.

Try again... You can do it! 😊

Thank you for the clues. I figured it out. The answer is 9

It comes from the multiplication of the two numbers, the sum of the third pentagon and the substraction of the first pentagon. Resolved it on excel. Heres the capture.

bounty.JPG

Wow! You really took the challenge seriously up to the point of using Excel huh? Let's park your answer there and see at the end of the contest period. It won't be long... 😊

I like puzzles. 😊

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