I bet no one can solve this....

the answer is 120, i got this by finding 2/3 of 36 which is 24. i then multiplied 24 by 2, then multiplied 36 by 2, which gave me 48 and 72, and then i just added them together to get 120, hopefully this helps
The answer is 120 because 2/3 of 36 is 24 so he goes 24 then back 24 then 36 then back 36. add that and you get 120. If you like my answer please mark as brainliest