John is very unfit and decides to work up to doing a push-up. He trains 5 days a week for them and starts with wall push-ups. He adds 1 rep a day and once he gets to 15 reps he will start training high elevation push-ups. and then low elevation push-ups, and finally floor push-ups. How many weeks will it take him to get to floor push-ups? Think carefully first, then make a decision:
He needs to do 15 * 3 = 45 progressions. That will take 45 / 5 = 9 weeks. So, the answer is 9.