Thanks for writing in and sorry for your confusion. The total weekly volume/hours will include strength and aerobic training. However as you progress from week to week the strength volume will not continue to progress like the aerobic training volume does. The strength workouts will end up topping out at about 1 hour each where as the aerobic training will continue to progress to much longer workouts.
Use these numbers as rough guidelines. Don’t get bogged down in trying to calculate things down to the minute. That’s not what is important. The point of these guidelines is to make sure you are not overdoing things in the beginning and then gradually progress your tolerable work load. Adhere to the principles laid out in the book and you’ll do well. Get fixated on a set of numbers and blindly follow that and it may not work out so well. That is why there is so much theory and explanation in these books. There is no one size fits all approach.
Good luck and thanks again.