Can you correctly solve this viral math problem?

The brain teaser shared on X asks users a simple maths question but the catch is to solve it solely from mental calculations.

Social media users often find themselves drawn to maths-related brain teasers. Reason? It helps them to unwind and take a break from the stresses of daily life. One such teaser recently made its way onto X (formerly Twitter), presenting a straightforward maths problem involving addition and multiplication. What’s more, puzzle enthusiasts have to solve it solely from mental calculations without using a calculator or pen and paper.
Here’s what people posted after solving this brain teaser:

 

Answer: