Brain Test 5 Level 67 - Walkthrough & Answer

Brain Test 5 Level 67 is a color-question-mark math puzzle. Set the blue question mark to 14, the red question mark to 18, then add two blues and one red to get the final answer 46.

Preview

Level 67

Board image

Previous level

Level 66

Next level

Level 68

Quick tactics for this level

Tip 01

Solve the blue and red values before worrying about the final page.

Tip 02

Treat the first two pages like a legend for the colors.

Tip 03

Once you know blue is 14 and red is 18, the last answer is straightforward.

Step-by-step solution

Solve `5 + 9` and store the blue question mark as `14`.

Solve `6 + 7 + 3 + 2` and store the red question mark as `18`.

On the last page, replace each blue question mark with `14`.

Replace the red question mark with `18`.

Add `14 + 14 + 18` and enter `46`.

Common mistakes

Mistake 01

Treating the final page like a brand-new equation instead of reusing the earlier color answers.

Mistake 02

Forgetting which total belonged to the blue question mark and which belonged to the red one.

Board notes

Layout

Level 67 uses three keypad screens built around colored question marks. First it asks for the blue question mark in `5 + 9 = ?`, then the red question mark in `6 + 7 + 3 + 2 = ?`, and finally it combines two blue question marks with one red question mark.

Goal

Solve the first two equations to define the color values, then reuse those stored values on the last page.

Opening

The blue question mark comes from `5 + 9`, which is `14`. The red question mark comes from `6 + 7 + 3 + 2`, which is `18`. The final page is therefore `14 + 14 + 18`.

Danger Zone

The last screen looks like a fresh puzzle, but it only makes sense if you remember what the first two colored question marks already meant.

Mechanics

Level 67 is arithmetic memory by color. The opening pages define the symbols, and the last page only asks you to reuse them.