Harry started a 6-mile hike with a full 10-cup canteen of water and finished the hike in 2 hours with 1 cup of water remaining in the canteen. If the canteen leaked at the rate of 1 cup per hour and Harry drank 3 cups of water during the last mile, how many cups did he drink per mile during the first 5 miles of the hike?
The OA is 4/5 but this is what i thought
out of the first 5 miles, there was a maximum of 6 cups still in the canteen
but it said that the canteen was leeking at a rate of 1 cup/hour. So by the 5th mile, 5/3 cup leaked Therefore 6 cups -5/3 cups = 13/3 cups. 13/3 cups divided by five equals 13/15
can someone point out what i did wrong? thanks