There’s nothing like a good old brainteaser to catch the internet’s attention.
However, the latest one that has surfaced on Facebook is proving a little tricky for our problem-solving skills.

The maths puzzle – which has already already garnered more than half a million comments and 13,000 shares since it was posted a few weeks ago – involves working out the values of three equestrian-themed symbols – a horse, a horseshoe and a cowboy boot.
Sure it looks simple enough… until you reach the last part of the equation

Read more...
http://wunderkidblog.com/can-you-solve-this-maths-puzzle/

22

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13 bro

The answer is 42
Solution:
10 + 10 + 10 = 30
10 + 4 + 4 = 18
4 - 2 = 2
2 + (10 * 4) = 42

15

42

21

48

12

22

21

41

48

21