Did you get it right?
This clock pattern gives two numbers at the top and one number at the bottom. The last clock is missing its bottom number.

The Answer
The correct answer is: 15.
Here is why
- In the first clock, 2 + 3 = 5.
- In the second clock, 4 + 5 = 9.
- In the third clock, 7 + 8 = 15.
Why people miss it
The clock shape can distract people, but the rule is simply adding the two top numbers.
What answer did you get before checking?