an airline passanger fell asleep halfway to her destination. When she woke up, the distance remaining was half the distance traveled while she was asleep. What portion of the trip was she asleep?

Answer 1

After falling asleep, half the trip was left. She slept 2/3 of the remaning half. 2/3 of 1/2 equals 1/3 of the entire trip spent sleeping.

Answer 2

"an airline passenger fell asleep *halfway* to her destination."
halfway= 1/2