Brain Test - Tricky Puzzles Level 278

Brain Test Level 278 answer and hint with full solution and walkthrough. Learn how to solve Level 278 easily with Brain Test Level’s detailed explanation and clear images.

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Brain Test Level 278 - Step 1
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Brain Test Level 278 - Step 2
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What is the question mark?

Answer

Sum the numbers at the corners of the left triangle (4 + 5 + 10 = 19) and enter '19'.

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