3'+6"+8'+2"+4"+2'+5"? Whats the answer

Question

3'+6"+8'+2"+4"+2'+5"=

 

Answer 1

I think one of the numbrs was left out 

 

13' + 6" + 2" + 4" + 5"

 

13' + 17"

 

(17 inches = 1 foot 5 inches)

 

so 

 

13' + 1' + 5"

 

14' 5"

Answer 2

3' + 6" + 8' + 2" + 4" + 2' + 5"

13' + 6" + 2" + 4"

13' + 12"

13' + 1'

14'