Brain Test 1 answer

Brain Test 1 Level 193

Puzzle prompt

When I was 6 years old, my sister was half of my age and…

Direct answer

The answer is 8 + 17 = 25.

Step 1

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 193 Brain Test 3Level 193 Brain Test 4Level 193 All StarLevel 193

Strategy guide

1.Focus on age progression: sister was 3 when you were 6, so she's always 3 years younger;
2.Calculate current age first: if you're now 25, sister must be 22 (25-3);
3.The puzzle tests attention to age relationships, not complex math. Keep it simple.

Common mistakes

1.Assuming the sister's age stays half forever, calculating current age incorrectly;
2.Misreading the question and trying to solve unrelated math problems instead;
3.Overcomplicating with complex algebra instead of simple age progression.