Up, Up, And Away!
Daryll was bored one day in a supermarket, and he decided to see how fit he was. Hel got on an escalator that was 50 feet high and had 50 equally sized steps. His goal was to get to the top, while the escalator was going towards the bottom. He could climb 10 steps every 9 seconds, while the escalator would move down 1 foot every 1 and ½ seconds. About how many seconds will it take for Daryll to get to the top?