Did you get it right?
This black-board math puzzle asks you to solve the parentheses before subtracting.

The Answer
The correct answer is: 20.
Here is why
- First solve 8 + 6 = 14.
- Then multiply 5 x 14 = 70.
- Finally 90 – 70 = 20.
Why people miss it
The trap is moving too fast and treating 5(8 + 6) as if it were simple addition.
What answer did you get before checking?