Could you give your brain some training by trying to solve this math test?
Do you think you’re smart enough to answer this question without looking up the answer?
Don’t underestimate it, most people will get it wrong initially!
If you get stuck, you can scroll down to check out the answer. Are you up for the challenge?
The question:
So, what are you trying to figure out? The deceptively easy equation is:
12+13=7
14+15=11
16+17=15
20+19=??
It appears to be a simple equation, straightforward addition, subtraction, and multiplication that we learn at a young age. But all is not as it seems.
A
B
C
ANSWER:
Let’s simply find the pattern:
Looking at the pattern:
12+13=7
14+15=11
16+17=15
Observing the results:
7, 11, 15 → The difference is +4 each time.
Checking the formula:
Each result seems to follow:
(A+B)−18
Verifying:
(12+13)−18=25−18=7
(14+15)−18=29−18=11
(16+17)−18=33−18=15
Step 2: Solve for
(20+19)−18=39−18=21
So, the answer is 21.
