Brain Test 1 answer

Brain Test 1 Level 278

Puzzle prompt

What is the question mark

Direct answer

All the equations in the triangles are the total of each corner. As an example, 8+3+1 equals 12. Therefore, 4+5+10 would be 19. The answer is 19.

Puzzle screenshot

walkthrough

Follow the screen sequence

Use the images as a compact replay of the solving path. The text below each frame explains what should change.

Video walkthrough

version check

Same number in other versions

Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.

Brain Test 1Level 278 Brain Test 3Level 278 Brain Test 4Level 278 All StarLevel 278

Strategy guide

1.Add all three corner numbers in each triangle to find the center value;
2.Verify the pattern with the first triangle: 8+3+1=12 matches the center;
3.Apply the same addition to the last triangle: 4+5+10=19 for the answer.

Common mistakes

1.Adding only two numbers in each triangle instead of all three corners;
2.Trying to find a mathematical pattern between triangles rather than within each one;
3.Assuming the question mark relates to the triangle's shape rather than its numerical sum.