You participate. In a 50 mi walk You walk 40% of the distance the first day. And 1/3 of the remaining distance on the second day. Bohr. Many more miles do you have to walk? Explain

I got : need 13.33 mi more to walk
20 miles
1/3 = 16.67 mi
Total. 36.67
50
-36.67
Difference 13.33 miles

You walked 20 miles the first day.

50 - 20 = 30 miles to go

Then you walked 1/3 of the remaining distance the second day.

1/3 of 30 = 10

50 - 20 - 10 = ?