In a ratio whichever unit that is listed first will be the first number in the ratio. So, in this case the strawberry comes first then the banana so for every 7 strawberry there will be 1 banana.
14 hours.
Work backwards. From travel, getting ready and sleep he needs 9.5 hours. From 11am to 10:30am is 23.5 hours. Subtracting the two you get 14 hours.
